Pyrite
Iron Sulfide (FeS2)
mineral
Category
Metal (Elemental Mineral)
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Pyrite
Iron Sulfide (FeS2)
mineral
Gold Nugget
Gold (Au)
mineral
Green Aventurine
Quartz (SiO2) with fuchsite inclusions
mineral
Pyrite in Quartz
Iron Sulfide (FeS2) with Silicon Dioxide (SiO2)
mineral
Green Aventurine
Quartz (SiO2) with fuchsite inclusions
mineral
Pyrite Sun
Iron Sulfide (FeS2)
mineral
Green Aventurine
Quartz with fuchsite inclusions (SiO2)
mineral
Green Aventurine
Quartz with fuchsite inclusions (SiO2)
mineral
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
mineral
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Cassiterite in Iron-rich Matrix
Cassiterite (SnO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Aventurine
Silicon Dioxide (SiO2 with inclusions of Fuchsite mica)
mineral
Quartz with Muscovite Mica
Silicon Dioxide (SiO2) with Potassium Aluminum Silicate Hydroxide (KAl2(AlSi3O10)(OH)2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
mineral
Sunstone
Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)
mineral
Amazonite
Amazonite (KAlSi3O8)
mineral
Native Gold (in earring form)
Gold (Au)
mineral
Quartz with Pyrite inclusions
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
mineral
Pyrite (Iron Pyrites)
Iron Sulfide (FeS2)
mineral
Specular Hematite
Specularite (Fe2O3)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
mineral
Hematite (Botryoidal / Kidney Ore)
Iron Oxide (Fe2O3)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Specular Hematite
Hematite (Iron(III) oxide, Fe2O3)
mineral
Ironstone (likely Limonite or Goethite nodule)
Hydrothermally altered Ferric Hydroxide (FeO(OH)·nH2O)
sedimentary
Ironstone Concretions (Ironstone)
Ferruginous Sandstone or Siltstone (Fe2O3)
sedimentary
Gold Nugget
Native Gold (Au)
mineral
Moqui Marble (Iron Concretion)
Hematite/Goethite Concretion (Fe2O3 / FeO(OH))
sedimentary
Green Aventurine
Silicon Dioxide with Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Sunstone
Oligoclase (Plagioclase Feldspar), (Na,Ca)(Si,Al)4O8
mineral
Gold in Quartz Matrix
Gold (Au) embedded in Quartz (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite in Matrix
Iron Sulfide (FeS2) embedded in host rock
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Hematite Nodular Concretion
Iron Oxide (Fe2O3)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral