{"id":5999527493830,"title":"4 Piritas Cuboidal Navajún's La Rioja Pyrite Built House Money Dorada Cube","handle":"4-piritas-cuboidal-navajuns-la-rioja-pyrite-built-house-money-dorada-cube-cube-gross-built-house-s-built-house-pyrite-valmoni-sport","description":"\u003cdiv class=\"hatnote navigation-not-searchable\" role=\"note\"\u003e\"Fool's Gold\" redirects here. For other uses, see \u003ca title=\"Fool's Gold (disambiguation)\" class=\"mw-disambig\" href=\"https:\/\/en.wikipedia.org\/wiki\/Fool%27s_Gold_(disambiguation)\"\u003eFool's Gold (disambiguation)\u003c\/a\u003e.\u003c\/div\u003e\n\u003cdiv class=\"hatnote navigation-not-searchable\" role=\"note\"\u003eThis article is about iron pyrite. For other pyrite minerals, see \u003ca title=\"Pyrite group\" href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite_group\"\u003ePyrite group\u003c\/a\u003e.\u003c\/div\u003e\n\u003cp\u003eThe \u003ca title=\"Mineral\" href=\"https:\/\/en.wikipedia.org\/wiki\/Mineral\"\u003emineral\u003c\/a\u003e \u003cb\u003epyrite\u003c\/b\u003e (\u003cspan class=\"rt-commentedText nowrap\"\u003e\u003cspan class=\"IPA nopopups noexcerpt\"\u003e\u003ca title=\"Help:IPA\/English\" href=\"https:\/\/en.wikipedia.org\/wiki\/Help:IPA\/English\"\u003e\/\u003cspan\u003e\u003cspan title=\"\/ˈ\/: primary stress follows\"\u003eˈ\u003c\/span\u003e\u003cspan title=\"'p' in 'pie'\"\u003ep\u003c\/span\u003e\u003cspan title=\"\/aɪ\/: 'i' in 'tide'\"\u003eaɪ\u003c\/span\u003e\u003cspan title=\"'r' in 'rye'\"\u003er\u003c\/span\u003e\u003cspan title=\"\/aɪ\/: 'i' in 'tide'\"\u003eaɪ\u003c\/span\u003e\u003cspan title=\"'t' in 'tie'\"\u003et\u003c\/span\u003e\u003c\/span\u003e\/\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e),\u003csup class=\"reference\" id=\"cite_ref-1\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-1\"\u003e[1]\u003c\/a\u003e\u003c\/sup\u003e or \u003cb\u003eiron pyrite\u003c\/b\u003e, also known as \u003cb\u003efool's gold\u003c\/b\u003e, is an \u003ca title=\"Iron sulfide\" href=\"https:\/\/en.wikipedia.org\/wiki\/Iron_sulfide\"\u003eiron sulfide\u003c\/a\u003e with the \u003ca title=\"Chemical formula\" href=\"https:\/\/en.wikipedia.org\/wiki\/Chemical_formula\"\u003echemical formula\u003c\/a\u003e \u003ca title=\"Iron\" href=\"https:\/\/en.wikipedia.org\/wiki\/Iron\"\u003eFe\u003c\/a\u003e\u003ca title=\"Sulfur\" href=\"https:\/\/en.wikipedia.org\/wiki\/Sulfur\"\u003eS\u003c\/a\u003e\u003csub\u003e2\u003c\/sub\u003e (iron (II) disulfide). Pyrite is the most abundant \u003ca title=\"Sulfide mineral\" href=\"https:\/\/en.wikipedia.org\/wiki\/Sulfide_mineral\"\u003esulfide mineral\u003c\/a\u003e.\u003c\/p\u003e\n\u003ctable class=\"infobox\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003ePyrite\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003ca class=\"image\" href=\"https:\/\/en.wikipedia.org\/wiki\/File:2780M-pyrite1.jpg\"\u003e\u003cimg data-file-height=\"2051\" data-file-width=\"1938\" srcset=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/9\/95\/2780M-pyrite1.jpg\/390px-2780M-pyrite1.jpg 1.5x, https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/9\/95\/2780M-pyrite1.jpg\/520px-2780M-pyrite1.jpg 2x\" height=\"275\" width=\"260\" decoding=\"async\" src=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/9\/95\/2780M-pyrite1.jpg\/260px-2780M-pyrite1.jpg\" alt=\"2780M-pyrite1.jpg\"\u003e\u003c\/a\u003e\n\u003cdiv\u003ePyrite cubic crystals on \u003ca title=\"Marl\" href=\"https:\/\/en.wikipedia.org\/wiki\/Marl\"\u003emarl\u003c\/a\u003e from \u003ca title=\"Navajún\" href=\"https:\/\/en.wikipedia.org\/wiki\/Navaj%C3%BAn\"\u003eNavajún\u003c\/a\u003e, \u003ca title=\"La Rioja (Spain)\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/La_Rioja_(Spain)\"\u003eLa Rioja\u003c\/a\u003e, Spain (size: 95 by 78 millimetres [3.7 by 3.1 in], 512 grams [18.1 oz]; main crystal: 31 millimetres [1.2 in] on edge)\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eGeneral\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCategory\u003c\/th\u003e\n\u003ctd\u003e\u003ca title=\"Sulfide mineral\" href=\"https:\/\/en.wikipedia.org\/wiki\/Sulfide_mineral\"\u003eSulfide mineral\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\n\u003ca title=\"Chemical formula\" href=\"https:\/\/en.wikipedia.org\/wiki\/Chemical_formula\"\u003eFormula\u003c\/a\u003e\u003cbr\u003e\u003cspan class=\"nobold\"\u003e(repeating unit)\u003c\/span\u003e\n\u003c\/th\u003e\n\u003ctd\u003eFeS\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Nickel–Strunz classification\" href=\"https:\/\/en.wikipedia.org\/wiki\/Nickel%E2%80%93Strunz_classification\"\u003eStrunz classification\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003e2.EB.05a\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDana classification\u003c\/th\u003e\n\u003ctd\u003e2.12.1.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Crystal system\" href=\"https:\/\/en.wikipedia.org\/wiki\/Crystal_system\"\u003eCrystal system\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003e\u003ca title=\"Cubic (crystal system)\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/Cubic_(crystal_system)\"\u003eIsometric\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Crystal class\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/Crystal_class\"\u003eCrystal class\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eDiploidal (m\u003cspan\u003e3\u003c\/span\u003e) \u003cbr\u003e\u003ca title=\"H-M symbol\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/H-M_symbol\"\u003eH-M symbol\u003c\/a\u003e: (2\/m \u003cspan\u003e3\u003c\/span\u003e)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Space group\" href=\"https:\/\/en.wikipedia.org\/wiki\/Space_group\"\u003eSpace group\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003e\n\u003ci\u003eP\u003c\/i\u003ea\u003cspan\u003e3\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Crystal structure\" href=\"https:\/\/en.wikipedia.org\/wiki\/Crystal_structure#Unit_cell\"\u003eUnit cell\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003ea = 5.417 \u003ca title=\"Ångstrom\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/%C3%85ngstrom\"\u003eÅ\u003c\/a\u003e, Z = 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eIdentification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Formula mass\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/Formula_mass\"\u003eFormula mass\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003e119.98 g\/mol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eColor\u003c\/th\u003e\n\u003ctd\u003ePale brass-yellow reflective; tarnishes darker and iridescent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Crystal habit\" href=\"https:\/\/en.wikipedia.org\/wiki\/Crystal_habit\"\u003eCrystal habit\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eCubic, faces may be striated, but also frequently octahedral and pyritohedral. Often inter-grown, massive, radiated, granular, globular, and stalactitic.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Crystal twinning\" href=\"https:\/\/en.wikipedia.org\/wiki\/Crystal_twinning\"\u003eTwinning\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003ePenetration and contact twinning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Cleavage (crystal)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Cleavage_(crystal)\"\u003eCleavage\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eIndistinct on {001}; partings on {011} and {111}\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Fracture (mineralogy)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Fracture_(mineralogy)\"\u003eFracture\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eVery uneven, sometimes conchoidal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Tenacity (mineralogy)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Tenacity_(mineralogy)\"\u003eTenacity\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eBrittle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\n\u003ca title=\"Mohs scale of mineral hardness\" href=\"https:\/\/en.wikipedia.org\/wiki\/Mohs_scale_of_mineral_hardness\"\u003eMohs scale\u003c\/a\u003e\u003cspan class=\"nobold\"\u003ehardness\u003c\/span\u003e\n\u003c\/th\u003e\n\u003ctd\u003e6–6.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Lustre (mineralogy)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Lustre_(mineralogy)\"\u003eLuster\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eMetallic, glistening\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Streak (mineralogy)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Streak_(mineralogy)\"\u003eStreak\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eGreenish-black to brownish-black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Transparency and translucency\" href=\"https:\/\/en.wikipedia.org\/wiki\/Transparency_and_translucency\"\u003eDiaphaneity\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eOpaque\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Specific gravity\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/Specific_gravity\"\u003eSpecific gravity\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003e4.95–5.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Density\" href=\"https:\/\/en.wikipedia.org\/wiki\/Density\"\u003eDensity\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003e4.8–5 g\/cm\u003csup\u003e3\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Fusibility\" href=\"https:\/\/en.wikipedia.org\/wiki\/Fusibility\"\u003eFusibility\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003e2.5–3 to a magnetic globule\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Solubility\" href=\"https:\/\/en.wikipedia.org\/wiki\/Solubility\"\u003eSolubility\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eInsoluble in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOther characteristics\u003c\/th\u003e\n\u003ctd\u003e\u003ca title=\"Paramagnetism\" href=\"https:\/\/en.wikipedia.org\/wiki\/Paramagnetism\"\u003eparamagnetic\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eReferences\u003c\/th\u003e\n\u003ctd\u003e\n\u003csup class=\"reference\" id=\"cite_ref-Hurlbut_2-0\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-Hurlbut-2\"\u003e[2]\u003c\/a\u003e\u003c\/sup\u003e\u003csup class=\"reference\" id=\"cite_ref-3\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-3\"\u003e[3]\u003c\/a\u003e\u003c\/sup\u003e\u003csup class=\"reference\" id=\"cite_ref-4\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-4\"\u003e[4]\u003c\/a\u003e\u003c\/sup\u003e\u003csup class=\"reference\" id=\"cite_ref-5\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-5\"\u003e[5]\u003c\/a\u003e\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003ePyrite's metallic \u003ca title=\"Luster (mineralogy)\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/Luster_(mineralogy)\"\u003eluster\u003c\/a\u003e and pale brass-yellow \u003ca title=\"Hue\" href=\"https:\/\/en.wikipedia.org\/wiki\/Hue\"\u003ehue\u003c\/a\u003e give it a superficial resemblance to \u003ca title=\"Gold\" href=\"https:\/\/en.wikipedia.org\/wiki\/Gold\"\u003egold\u003c\/a\u003e, hence the well-known nickname of \u003ci\u003efool's gold\u003c\/i\u003e. The color has also led to the nicknames \u003ci\u003ebrass\u003c\/i\u003e, \u003ci\u003ebrazzle\u003c\/i\u003e, and \u003ci\u003eBrazil\u003c\/i\u003e, primarily used to refer to pyrite found in \u003ca title=\"Coal\" href=\"https:\/\/en.wikipedia.org\/wiki\/Coal\"\u003ecoal\u003c\/a\u003e.\u003csup class=\"reference\" id=\"cite_ref-6\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-6\"\u003e[6]\u003c\/a\u003e\u003c\/sup\u003e\u003csup class=\"reference\" id=\"cite_ref-7\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-7\"\u003e[7]\u003c\/a\u003e\u003c\/sup\u003e\u003c\/p\u003e\n\u003cp\u003eThe name \u003ci\u003epyrite\u003c\/i\u003e is derived from the \u003ca title=\"Greek language\" href=\"https:\/\/en.wikipedia.org\/wiki\/Greek_language\"\u003eGreek\u003c\/a\u003e \u003cspan title=\"Ancient Greek (to 1453) language text\" lang=\"grc\"\u003eπυρίτης λίθος\u003c\/span\u003e (\u003ci\u003epyritēs lithos\u003c\/i\u003e), \"stone or mineral which strikes fire\",\u003csup class=\"reference\" id=\"cite_ref-8\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-8\"\u003e[8]\u003c\/a\u003e\u003c\/sup\u003e in turn from \u003cspan title=\"Ancient Greek (to 1453) language text\" lang=\"grc\"\u003eπῦρ\u003c\/span\u003e (\u003ci\u003epyr\u003c\/i\u003e), \"fire\".\u003csup class=\"reference\" id=\"cite_ref-9\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-9\"\u003e[9]\u003c\/a\u003e\u003c\/sup\u003e In ancient Roman times, this name was applied to several types of stone that would create sparks when struck against \u003ca title=\"Steel\" href=\"https:\/\/en.wikipedia.org\/wiki\/Steel\"\u003esteel\u003c\/a\u003e; \u003ca title=\"Pliny the Elder\" href=\"https:\/\/en.wikipedia.org\/wiki\/Pliny_the_Elder\"\u003ePliny the Elder\u003c\/a\u003e described one of them as being brassy, almost certainly a reference to what we now call pyrite.\u003csup class=\"reference\" id=\"cite_ref-10\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-10\"\u003e[10]\u003c\/a\u003e\u003c\/sup\u003e\u003c\/p\u003e\n\u003cp\u003eBy \u003ca title=\"Georgius Agricola\" href=\"https:\/\/en.wikipedia.org\/wiki\/Georgius_Agricola\"\u003eGeorgius Agricola\u003c\/a\u003e's time, \u003cabbr class=\"rt-commentedText\" title=\"circa\"\u003ec.\u003c\/abbr\u003e\u003cspan\u003e 1550\u003c\/span\u003e, the term had become a generic term for all of the \u003ca title=\"Pyrite group\" href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite_group\"\u003esulfide minerals\u003c\/a\u003e.\u003csup class=\"reference\" id=\"cite_ref-11\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-11\"\u003e[11]\u003c\/a\u003e\u003c\/sup\u003e\u003c\/p\u003e\n\u003cdiv class=\"thumb tright\"\u003e\n\u003cdiv class=\"thumbinner\"\u003ePyrite under normal and polarized light\u003cbr\u003e\n\u003cdiv class=\"thumbcaption\"\u003e\n\u003cdiv class=\"magnify\"\u003e\u003ca title=\"Enlarge\" class=\"internal\" href=\"https:\/\/en.wikipedia.org\/wiki\/File:Pyrite_under_Normal_and_Polarized_light.jpg\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003ePyrite is usually found associated with other sulfides or \u003ca title=\"Oxide\" href=\"https:\/\/en.wikipedia.org\/wiki\/Oxide\"\u003eoxides\u003c\/a\u003e in \u003ca title=\"Quartz\" href=\"https:\/\/en.wikipedia.org\/wiki\/Quartz\"\u003equartz\u003c\/a\u003e \u003ca title=\"Vein (geology)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Vein_(geology)\"\u003eveins\u003c\/a\u003e, \u003ca title=\"Sedimentary rock\" href=\"https:\/\/en.wikipedia.org\/wiki\/Sedimentary_rock\"\u003esedimentary rock\u003c\/a\u003e, and \u003ca title=\"Metamorphic rock\" href=\"https:\/\/en.wikipedia.org\/wiki\/Metamorphic_rock\"\u003emetamorphic rock\u003c\/a\u003e, as well as in coal beds and as a replacement mineral in \u003ca title=\"Fossil\" href=\"https:\/\/en.wikipedia.org\/wiki\/Fossil\"\u003efossils\u003c\/a\u003e, but has also been identified in the \u003ca title=\"Sclerite\" href=\"https:\/\/en.wikipedia.org\/wiki\/Sclerite\"\u003esclerites\u003c\/a\u003e of \u003ca title=\"Scaly-foot snail\" href=\"https:\/\/en.wikipedia.org\/wiki\/Scaly-foot_snail\"\u003escaly-foot gastropods\u003c\/a\u003e.\u003csup class=\"reference\" id=\"cite_ref-12\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-12\"\u003e[12]\u003c\/a\u003e\u003c\/sup\u003e Despite being nicknamed fool's gold, pyrite is sometimes foundn association with small quantities of gold. A substantial proportion of the gold is \"invisible gold\" incorporated into the pyrite (see \u003ca title=\"Carlin-type gold deposit\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/Carlin-type_gold_deposit\"\u003eCarlin-type gold deposit\u003c\/a\u003e). It has been suggested that the presence of both gold and \u003ca title=\"Arsenic\" href=\"https:\/\/en.wikipedia.org\/wiki\/Arsenic\"\u003earsenic\u003c\/a\u003e is a case of \u003ca title=\"Coupled substitution\" href=\"https:\/\/en.wikipedia.org\/wiki\/Coupled_substitution\"\u003ecoupled substitution\u003c\/a\u003e but as  1997 the chemical state of the gold remained controversial.\u003csup class=\"reference\" id=\"cite_ref-13\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-13\"\u003e[13]\u003c\/a\u003e\u003c\/sup\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eRegional Feature:\u003c\/strong\u003e Europe\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stone\u003c\/span\u003e\u003c\/p\u003e","published_at":"2020-10-27T21:18:35-04:00","created_at":"2020-10-27T21:18:35-04:00","vendor":"GEEWIRE","type":"","tags":[],"price":2948,"price_min":2948,"price_max":2948,"available":true,"price_varies":false,"compare_at_price":2948,"compare_at_price_min":2948,"compare_at_price_max":2948,"compare_at_price_varies":false,"variants":[{"id":37282238070982,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"40920332-spain","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"4 Piritas Cuboidal Navajún's La Rioja Pyrite Built House Money Dorada Cube","public_title":null,"options":["Default Title"],"price":2948,"weight":0,"compare_at_price":2948,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/cdn.shopify.com\/s\/files\/1\/0504\/9529\/1590\/products\/product-image-1585791242.jpg?v=1603847917"],"featured_image":"\/\/cdn.shopify.com\/s\/files\/1\/0504\/9529\/1590\/products\/product-image-1585791242.jpg?v=1603847917","options":["Title"],"media":[{"alt":null,"id":14508937347270,"position":1,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0504\/9529\/1590\/products\/product-image-1585791242.jpg?v=1603847917"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0504\/9529\/1590\/products\/product-image-1585791242.jpg?v=1603847917","width":800}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cdiv class=\"hatnote navigation-not-searchable\" role=\"note\"\u003e\"Fool's Gold\" redirects here. For other uses, see \u003ca title=\"Fool's Gold (disambiguation)\" class=\"mw-disambig\" href=\"https:\/\/en.wikipedia.org\/wiki\/Fool%27s_Gold_(disambiguation)\"\u003eFool's Gold (disambiguation)\u003c\/a\u003e.\u003c\/div\u003e\n\u003cdiv class=\"hatnote navigation-not-searchable\" role=\"note\"\u003eThis article is about iron pyrite. For other pyrite minerals, see \u003ca title=\"Pyrite group\" href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite_group\"\u003ePyrite group\u003c\/a\u003e.\u003c\/div\u003e\n\u003cp\u003eThe \u003ca title=\"Mineral\" href=\"https:\/\/en.wikipedia.org\/wiki\/Mineral\"\u003emineral\u003c\/a\u003e \u003cb\u003epyrite\u003c\/b\u003e (\u003cspan class=\"rt-commentedText nowrap\"\u003e\u003cspan class=\"IPA nopopups noexcerpt\"\u003e\u003ca title=\"Help:IPA\/English\" href=\"https:\/\/en.wikipedia.org\/wiki\/Help:IPA\/English\"\u003e\/\u003cspan\u003e\u003cspan title=\"\/ˈ\/: primary stress follows\"\u003eˈ\u003c\/span\u003e\u003cspan title=\"'p' in 'pie'\"\u003ep\u003c\/span\u003e\u003cspan title=\"\/aɪ\/: 'i' in 'tide'\"\u003eaɪ\u003c\/span\u003e\u003cspan title=\"'r' in 'rye'\"\u003er\u003c\/span\u003e\u003cspan title=\"\/aɪ\/: 'i' in 'tide'\"\u003eaɪ\u003c\/span\u003e\u003cspan title=\"'t' in 'tie'\"\u003et\u003c\/span\u003e\u003c\/span\u003e\/\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e),\u003csup class=\"reference\" id=\"cite_ref-1\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-1\"\u003e[1]\u003c\/a\u003e\u003c\/sup\u003e or \u003cb\u003eiron pyrite\u003c\/b\u003e, also known as \u003cb\u003efool's gold\u003c\/b\u003e, is an \u003ca title=\"Iron sulfide\" href=\"https:\/\/en.wikipedia.org\/wiki\/Iron_sulfide\"\u003eiron sulfide\u003c\/a\u003e with the \u003ca title=\"Chemical formula\" href=\"https:\/\/en.wikipedia.org\/wiki\/Chemical_formula\"\u003echemical formula\u003c\/a\u003e \u003ca title=\"Iron\" href=\"https:\/\/en.wikipedia.org\/wiki\/Iron\"\u003eFe\u003c\/a\u003e\u003ca title=\"Sulfur\" href=\"https:\/\/en.wikipedia.org\/wiki\/Sulfur\"\u003eS\u003c\/a\u003e\u003csub\u003e2\u003c\/sub\u003e (iron (II) disulfide). Pyrite is the most abundant \u003ca title=\"Sulfide mineral\" href=\"https:\/\/en.wikipedia.org\/wiki\/Sulfide_mineral\"\u003esulfide mineral\u003c\/a\u003e.\u003c\/p\u003e\n\u003ctable class=\"infobox\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003ePyrite\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003ca class=\"image\" href=\"https:\/\/en.wikipedia.org\/wiki\/File:2780M-pyrite1.jpg\"\u003e\u003cimg data-file-height=\"2051\" data-file-width=\"1938\" srcset=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/9\/95\/2780M-pyrite1.jpg\/390px-2780M-pyrite1.jpg 1.5x, https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/9\/95\/2780M-pyrite1.jpg\/520px-2780M-pyrite1.jpg 2x\" height=\"275\" width=\"260\" decoding=\"async\" src=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/9\/95\/2780M-pyrite1.jpg\/260px-2780M-pyrite1.jpg\" alt=\"2780M-pyrite1.jpg\"\u003e\u003c\/a\u003e\n\u003cdiv\u003ePyrite cubic crystals on \u003ca title=\"Marl\" href=\"https:\/\/en.wikipedia.org\/wiki\/Marl\"\u003emarl\u003c\/a\u003e from \u003ca title=\"Navajún\" href=\"https:\/\/en.wikipedia.org\/wiki\/Navaj%C3%BAn\"\u003eNavajún\u003c\/a\u003e, \u003ca title=\"La Rioja (Spain)\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/La_Rioja_(Spain)\"\u003eLa Rioja\u003c\/a\u003e, Spain (size: 95 by 78 millimetres [3.7 by 3.1 in], 512 grams [18.1 oz]; main crystal: 31 millimetres [1.2 in] on edge)\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eGeneral\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCategory\u003c\/th\u003e\n\u003ctd\u003e\u003ca title=\"Sulfide mineral\" href=\"https:\/\/en.wikipedia.org\/wiki\/Sulfide_mineral\"\u003eSulfide mineral\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\n\u003ca title=\"Chemical formula\" href=\"https:\/\/en.wikipedia.org\/wiki\/Chemical_formula\"\u003eFormula\u003c\/a\u003e\u003cbr\u003e\u003cspan class=\"nobold\"\u003e(repeating unit)\u003c\/span\u003e\n\u003c\/th\u003e\n\u003ctd\u003eFeS\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Nickel–Strunz classification\" href=\"https:\/\/en.wikipedia.org\/wiki\/Nickel%E2%80%93Strunz_classification\"\u003eStrunz classification\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003e2.EB.05a\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDana classification\u003c\/th\u003e\n\u003ctd\u003e2.12.1.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Crystal system\" href=\"https:\/\/en.wikipedia.org\/wiki\/Crystal_system\"\u003eCrystal system\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003e\u003ca title=\"Cubic (crystal system)\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/Cubic_(crystal_system)\"\u003eIsometric\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Crystal class\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/Crystal_class\"\u003eCrystal class\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eDiploidal (m\u003cspan\u003e3\u003c\/span\u003e) \u003cbr\u003e\u003ca title=\"H-M symbol\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/H-M_symbol\"\u003eH-M symbol\u003c\/a\u003e: (2\/m \u003cspan\u003e3\u003c\/span\u003e)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Space group\" href=\"https:\/\/en.wikipedia.org\/wiki\/Space_group\"\u003eSpace group\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003e\n\u003ci\u003eP\u003c\/i\u003ea\u003cspan\u003e3\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Crystal structure\" href=\"https:\/\/en.wikipedia.org\/wiki\/Crystal_structure#Unit_cell\"\u003eUnit cell\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003ea = 5.417 \u003ca title=\"Ångstrom\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/%C3%85ngstrom\"\u003eÅ\u003c\/a\u003e, Z = 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eIdentification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Formula mass\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/Formula_mass\"\u003eFormula mass\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003e119.98 g\/mol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eColor\u003c\/th\u003e\n\u003ctd\u003ePale brass-yellow reflective; tarnishes darker and iridescent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Crystal habit\" href=\"https:\/\/en.wikipedia.org\/wiki\/Crystal_habit\"\u003eCrystal habit\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eCubic, faces may be striated, but also frequently octahedral and pyritohedral. Often inter-grown, massive, radiated, granular, globular, and stalactitic.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Crystal twinning\" href=\"https:\/\/en.wikipedia.org\/wiki\/Crystal_twinning\"\u003eTwinning\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003ePenetration and contact twinning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Cleavage (crystal)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Cleavage_(crystal)\"\u003eCleavage\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eIndistinct on {001}; partings on {011} and {111}\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Fracture (mineralogy)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Fracture_(mineralogy)\"\u003eFracture\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eVery uneven, sometimes conchoidal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Tenacity (mineralogy)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Tenacity_(mineralogy)\"\u003eTenacity\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eBrittle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\n\u003ca title=\"Mohs scale of mineral hardness\" href=\"https:\/\/en.wikipedia.org\/wiki\/Mohs_scale_of_mineral_hardness\"\u003eMohs scale\u003c\/a\u003e\u003cspan class=\"nobold\"\u003ehardness\u003c\/span\u003e\n\u003c\/th\u003e\n\u003ctd\u003e6–6.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Lustre (mineralogy)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Lustre_(mineralogy)\"\u003eLuster\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eMetallic, glistening\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Streak (mineralogy)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Streak_(mineralogy)\"\u003eStreak\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eGreenish-black to brownish-black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Transparency and translucency\" href=\"https:\/\/en.wikipedia.org\/wiki\/Transparency_and_translucency\"\u003eDiaphaneity\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eOpaque\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Specific gravity\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/Specific_gravity\"\u003eSpecific gravity\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003e4.95–5.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Density\" href=\"https:\/\/en.wikipedia.org\/wiki\/Density\"\u003eDensity\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003e4.8–5 g\/cm\u003csup\u003e3\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Fusibility\" href=\"https:\/\/en.wikipedia.org\/wiki\/Fusibility\"\u003eFusibility\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003e2.5–3 to a magnetic globule\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca title=\"Solubility\" href=\"https:\/\/en.wikipedia.org\/wiki\/Solubility\"\u003eSolubility\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eInsoluble in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOther characteristics\u003c\/th\u003e\n\u003ctd\u003e\u003ca title=\"Paramagnetism\" href=\"https:\/\/en.wikipedia.org\/wiki\/Paramagnetism\"\u003eparamagnetic\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eReferences\u003c\/th\u003e\n\u003ctd\u003e\n\u003csup class=\"reference\" id=\"cite_ref-Hurlbut_2-0\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-Hurlbut-2\"\u003e[2]\u003c\/a\u003e\u003c\/sup\u003e\u003csup class=\"reference\" id=\"cite_ref-3\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-3\"\u003e[3]\u003c\/a\u003e\u003c\/sup\u003e\u003csup class=\"reference\" id=\"cite_ref-4\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-4\"\u003e[4]\u003c\/a\u003e\u003c\/sup\u003e\u003csup class=\"reference\" id=\"cite_ref-5\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-5\"\u003e[5]\u003c\/a\u003e\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003ePyrite's metallic \u003ca title=\"Luster (mineralogy)\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/Luster_(mineralogy)\"\u003eluster\u003c\/a\u003e and pale brass-yellow \u003ca title=\"Hue\" href=\"https:\/\/en.wikipedia.org\/wiki\/Hue\"\u003ehue\u003c\/a\u003e give it a superficial resemblance to \u003ca title=\"Gold\" href=\"https:\/\/en.wikipedia.org\/wiki\/Gold\"\u003egold\u003c\/a\u003e, hence the well-known nickname of \u003ci\u003efool's gold\u003c\/i\u003e. The color has also led to the nicknames \u003ci\u003ebrass\u003c\/i\u003e, \u003ci\u003ebrazzle\u003c\/i\u003e, and \u003ci\u003eBrazil\u003c\/i\u003e, primarily used to refer to pyrite found in \u003ca title=\"Coal\" href=\"https:\/\/en.wikipedia.org\/wiki\/Coal\"\u003ecoal\u003c\/a\u003e.\u003csup class=\"reference\" id=\"cite_ref-6\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-6\"\u003e[6]\u003c\/a\u003e\u003c\/sup\u003e\u003csup class=\"reference\" id=\"cite_ref-7\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-7\"\u003e[7]\u003c\/a\u003e\u003c\/sup\u003e\u003c\/p\u003e\n\u003cp\u003eThe name \u003ci\u003epyrite\u003c\/i\u003e is derived from the \u003ca title=\"Greek language\" href=\"https:\/\/en.wikipedia.org\/wiki\/Greek_language\"\u003eGreek\u003c\/a\u003e \u003cspan title=\"Ancient Greek (to 1453) language text\" lang=\"grc\"\u003eπυρίτης λίθος\u003c\/span\u003e (\u003ci\u003epyritēs lithos\u003c\/i\u003e), \"stone or mineral which strikes fire\",\u003csup class=\"reference\" id=\"cite_ref-8\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-8\"\u003e[8]\u003c\/a\u003e\u003c\/sup\u003e in turn from \u003cspan title=\"Ancient Greek (to 1453) language text\" lang=\"grc\"\u003eπῦρ\u003c\/span\u003e (\u003ci\u003epyr\u003c\/i\u003e), \"fire\".\u003csup class=\"reference\" id=\"cite_ref-9\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-9\"\u003e[9]\u003c\/a\u003e\u003c\/sup\u003e In ancient Roman times, this name was applied to several types of stone that would create sparks when struck against \u003ca title=\"Steel\" href=\"https:\/\/en.wikipedia.org\/wiki\/Steel\"\u003esteel\u003c\/a\u003e; \u003ca title=\"Pliny the Elder\" href=\"https:\/\/en.wikipedia.org\/wiki\/Pliny_the_Elder\"\u003ePliny the Elder\u003c\/a\u003e described one of them as being brassy, almost certainly a reference to what we now call pyrite.\u003csup class=\"reference\" id=\"cite_ref-10\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-10\"\u003e[10]\u003c\/a\u003e\u003c\/sup\u003e\u003c\/p\u003e\n\u003cp\u003eBy \u003ca title=\"Georgius Agricola\" href=\"https:\/\/en.wikipedia.org\/wiki\/Georgius_Agricola\"\u003eGeorgius Agricola\u003c\/a\u003e's time, \u003cabbr class=\"rt-commentedText\" title=\"circa\"\u003ec.\u003c\/abbr\u003e\u003cspan\u003e 1550\u003c\/span\u003e, the term had become a generic term for all of the \u003ca title=\"Pyrite group\" href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite_group\"\u003esulfide minerals\u003c\/a\u003e.\u003csup class=\"reference\" id=\"cite_ref-11\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-11\"\u003e[11]\u003c\/a\u003e\u003c\/sup\u003e\u003c\/p\u003e\n\u003cdiv class=\"thumb tright\"\u003e\n\u003cdiv class=\"thumbinner\"\u003ePyrite under normal and polarized light\u003cbr\u003e\n\u003cdiv class=\"thumbcaption\"\u003e\n\u003cdiv class=\"magnify\"\u003e\u003ca title=\"Enlarge\" class=\"internal\" href=\"https:\/\/en.wikipedia.org\/wiki\/File:Pyrite_under_Normal_and_Polarized_light.jpg\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003ePyrite is usually found associated with other sulfides or \u003ca title=\"Oxide\" href=\"https:\/\/en.wikipedia.org\/wiki\/Oxide\"\u003eoxides\u003c\/a\u003e in \u003ca title=\"Quartz\" href=\"https:\/\/en.wikipedia.org\/wiki\/Quartz\"\u003equartz\u003c\/a\u003e \u003ca title=\"Vein (geology)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Vein_(geology)\"\u003eveins\u003c\/a\u003e, \u003ca title=\"Sedimentary rock\" href=\"https:\/\/en.wikipedia.org\/wiki\/Sedimentary_rock\"\u003esedimentary rock\u003c\/a\u003e, and \u003ca title=\"Metamorphic rock\" href=\"https:\/\/en.wikipedia.org\/wiki\/Metamorphic_rock\"\u003emetamorphic rock\u003c\/a\u003e, as well as in coal beds and as a replacement mineral in \u003ca title=\"Fossil\" href=\"https:\/\/en.wikipedia.org\/wiki\/Fossil\"\u003efossils\u003c\/a\u003e, but has also been identified in the \u003ca title=\"Sclerite\" href=\"https:\/\/en.wikipedia.org\/wiki\/Sclerite\"\u003esclerites\u003c\/a\u003e of \u003ca title=\"Scaly-foot snail\" href=\"https:\/\/en.wikipedia.org\/wiki\/Scaly-foot_snail\"\u003escaly-foot gastropods\u003c\/a\u003e.\u003csup class=\"reference\" id=\"cite_ref-12\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-12\"\u003e[12]\u003c\/a\u003e\u003c\/sup\u003e Despite being nicknamed fool's gold, pyrite is sometimes foundn association with small quantities of gold. A substantial proportion of the gold is \"invisible gold\" incorporated into the pyrite (see \u003ca title=\"Carlin-type gold deposit\" class=\"mw-redirect\" href=\"https:\/\/en.wikipedia.org\/wiki\/Carlin-type_gold_deposit\"\u003eCarlin-type gold deposit\u003c\/a\u003e). It has been suggested that the presence of both gold and \u003ca title=\"Arsenic\" href=\"https:\/\/en.wikipedia.org\/wiki\/Arsenic\"\u003earsenic\u003c\/a\u003e is a case of \u003ca title=\"Coupled substitution\" href=\"https:\/\/en.wikipedia.org\/wiki\/Coupled_substitution\"\u003ecoupled substitution\u003c\/a\u003e but as  1997 the chemical state of the gold remained controversial.\u003csup class=\"reference\" id=\"cite_ref-13\"\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrite#cite_note-13\"\u003e[13]\u003c\/a\u003e\u003c\/sup\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eRegional Feature:\u003c\/strong\u003e Europe\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stone\u003c\/span\u003e\u003c\/p\u003e"}