{"product_id":"pyrite-marcasite-baryte-quartz-and-galena-3","title":"Pyrite,Marcasite,Baryte,Quartz and galena","description":"\u003cp\u003ePyrite,Marcasite,Baryte,galena and Quartz from Oumjane mine Morocco\u003c\/p\u003e\n\u003cp\u003eSize-\u003cbr\u003e7.7cm x 5.6cm x 4.4cm\u003c\/p\u003e\n\u003cp\u003eWeight-\u003cbr\u003e116g\u003c\/p\u003e\n\u003cp\u003eYou will receive the item in the photo\u003c\/p\u003e\n\u003cp\u003eMarcasite:\u003c\/p\u003e\n\u003cp\u003eMarcasite is an iron sulfide mineral.\u003c\/p\u003e\n\u003cp\u003eMineral class:\u003cbr\u003eSulfides\u003c\/p\u003e\n\u003cp\u003eCrystal system: \u003cbr\u003eOrthorhombic\u003c\/p\u003e\n\u003cp\u003eHardness:\u003cbr\u003e6-6.5 on the MOHs scale\u003c\/p\u003e\n\u003cp\u003eRock formation and environments:\u003c\/p\u003e\n\u003cp\u003eRock environments-\u003cbr\u003eCommonly precipitates in sedimentary rocks such as chalk,limestone, shale and coal beds.\u003c\/p\u003e\n\u003cp\u003eFormation process-\u003cbr\u003eForms via chemical precipitation from acidic waters at low temperatures near the earths surface or within low- temperature hydrothermal veins.\u003c\/p\u003e\n\u003cp\u003eCrystal habits-\u003cbr\u003eFrequently grows as tabular,spear-shaped or cockscomb crystal aggregates to twinning.\u003c\/p\u003e\n\u003cp\u003ePyrite:\u003c\/p\u003e\n\u003cp\u003eCommonly known as fools gold.\u003c\/p\u003e\n\u003cp\u003eCrystal system-\u003cbr\u003eIsometric\/cubic\u003c\/p\u003e\n\u003cp\u003eMineral class -\u003cbr\u003eSulfide\u003c\/p\u003e\n\u003cp\u003eHardness-\u003cbr\u003e6-6.5 on the MOHs scale\u003c\/p\u003e\n\u003cp\u003eRock formation environments:\u003c\/p\u003e\n\u003cp\u003eSedimentary rocks-\u003cbr\u003eForms in organic rich muds,shales,limestone and coal beds via bacterial action,sometimes replacing shells or plant debris to create pyritized fossils.\u003c\/p\u003e\n\u003cp\u003eIgneous rocks-\u003cbr\u003eOccurs as an accessory minor mineral cooled within magmas and volcanic environments.\u003c\/p\u003e\n\u003cp\u003eMetamorphic rocks-\u003cbr\u003eGrows under high heat and pressure conditions or precipitates out of hot, circulating hydrothermal vein fluids.\u003c\/p\u003e\n\u003cp\u003eQuartz:\u003c\/p\u003e\n\u003cp\u003eCrystal system-\u003cbr\u003eTrigonal\u003c\/p\u003e\n\u003cp\u003eMineral class-\u003cbr\u003eSilicate\u003c\/p\u003e\n\u003cp\u003eHardnesss-\u003cbr\u003e7 on the MOHs scale\u003c\/p\u003e\n\u003cp\u003eRock formation-\u003cbr\u003eCrystallizes from magma in igneous rocks like granite,precipitates in sedimentary rocks like sandstone and recrystallizes under heat and pressure in metamorphic \u003cbr\u003erocks like quartzite.\u003c\/p\u003e\n\u003cp\u003eBaryte:\u003c\/p\u003e\n\u003cp\u003eCrystal system-\u003cbr\u003eOrthorhombic (commonly tabular or bladed crystals)\u003c\/p\u003e\n\u003cp\u003eRock formation-\u003cbr\u003eHydrothermal veins and sedimentary rock environments (like limestone and dolostone)\u003c\/p\u003e\n\u003cp\u003eMineral class-\u003cbr\u003eSulfate\u003c\/p\u003e\n\u003cp\u003eHardness-\u003cbr\u003e3-3.5 on the MOHs scale\u003c\/p\u003e\n\u003cp\u003eGalena:\u003c\/p\u003e\n\u003cp\u003eCrystal system- \u003cbr\u003eIsometric\/cubic\u003c\/p\u003e\n\u003cp\u003eRock formation-\u003cbr\u003eHydrothermal veins and low temperature lead zinc replacement deposits in limestone\u003c\/p\u003e\n\u003cp\u003eMineral class-\u003cbr\u003eSulfide\u003c\/p\u003e\n\u003cp\u003eHardness-\u003cbr\u003e2.5-2.75 on the MOHs scale\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Crystal and fossils","offers":[{"title":"Default Title","offer_id":62152341979523,"sku":null,"price":22.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/2524\/3040\/files\/FullSizeRender_5535feb3-86d4-456f-b69d-11d5afe80e69.heic?v=1784999697","url":"https:\/\/crystalandfossils.co.uk\/products\/pyrite-marcasite-baryte-quartz-and-galena-3","provider":"Crystal and fossils","version":"1.0","type":"link"}