Pyrite
Iron Sulfide (FeS2)
Category
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Pyrite
Iron Sulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Botryoidal Chalcedony (Agate)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Pyrite (Cube variety)
Iron Sulfide (FeS2)
Calcite
Calcium Carbonate (CaCO3)
Hematite (Iron Ore)
Hematite (Fe2O3)
Milky Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
Pyrite
Iron disulfide (FeS2)
Hematite
Iron(III) oxide (Fe2O3)
Quartz
Silicon Dioxide (SiO2)
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Banded Gneiss
Gneiss (pronounced 'nice')
Gold Quartz (Auriferous Quartz)
Silicon Dioxide (SiO2) with trace Gold (Au) and Iron Oxides
Silver (Native Element / Alloy)
Silver (Ag)
Chlorastrolite (Greenstone)
Chlorastrolite (Pumpellyite variety), Ca2(Mg,Fe)Al2(SiO4)(Si2O7)(OH)2·H2O
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Chrysocolla
Chrysocolla, (Cu, Al)2H2Si2O5(OH)4·nH2O
Jasper
Jasper (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Faceted Clear Quartz
Crystalline Silicon Dioxide (SiO2)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Sand Grain (Silica/Quartz Grain)
Silicon Dioxide (SiO2)
Gold
Native Gold (Au)
Fluorite (Rainbow Fluorite)
Calcium Fluoride (CaF2)
Rhodochrosite with Pyrite and Quartz
Manganese Carbonate (MnCO3)
Crazy Lace Agate
Agate (Cryptocrystalline Quartz), SiO2
Green Quartz (Prasiolite/Adventurine/Jasper)
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Ocean Jasper
Spherulitic Chalcedony (SiO2)
Diabase (Dolerite)
Diabase or Dolerite
Porphyry (specifically Porphyritic Rhyolite or Andesite)
Porphyritic Igneous Rock (composed of Phenocrysts in an Aphanitic groundmass)
Porphyritic Basalt (Chinese Writing Stone)
Porphyritic Basalt with Feldspar Phenocrysts
Graphite-rich schist (likely graphite ore)
Graphite-bearing schist; predominantly graphitic carbon (C) with mica, quartz, and possible feldspar
Botryoidal hematite/goethite specimen
Hematite (Fe₂O₃), likely mixed with goethite (FeO(OH))
Dioptase
Dioptase (CuSiO2(OH)2)