Pyrite (Fools Gold)
Iron Disulfide (FeS2)
Category
Browse metamorphic (localized) or sedimentary specimens identified by the Rock Identifier community.
Pyrite (Fools Gold)
Iron Disulfide (FeS2)
Quartz (Milky/Snow)
Silicon Dioxide (SiO2)
Pyrite in Matrix
Iron Disulfide (FeS2)
Blue Apatite
Fluoroapatite (Ca5(PO4)3F)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Garnet (Almandine)
Almandine, Fe3Al2Si3O12
Garnet in Schist (Mica Schist with Garnet Inclusion)
Garnetiferous Mica Schist (X3Al2(SiO4)3)
Pyrite
Iron Sulfide (FeS2)
Blue Apatite
Calcium phosphate mineral, Ca5(PO4)3(F,Cl,OH)
Specular Hematite
Specularite (Fe2O3)
Gneiss
Metamorphic Gneiss
Quartz Crystal
Silicon Dioxide (SiO2)
Riverstone (Quartzite or Siltstone cobble)
Quartzite (primarily SiO2)
Pyrite
Iron Sulfide (FeS2)
Sandstone with Liesegang Rings
Quartzose Sandstone with Iron Oxide Precipitation
Shale or Slate
Shale (Sedimentary) or Slate (Metamorphic)
Quartz
Silicon Dioxide (SiO2)
Fluorite, Turquoise, and Calcite set
Calcium Fluoride (CaF2), Hydrous Phosphate of Copper and Aluminum (CuAl6(PO4)4(OH)8·4H2O), Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Green Opal
Hydrated Silica (SiO2·nH2O)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Green Gneiss
Metamorphic Gneiss
Gneiss
Metamorphic Gneiss
Quartz Crystal Cluster / Quartzite
Silicon Dioxide (SiO2)
Quartz (Orange/Pink variety)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Clear Quartz (Faceted)
Silicon Dioxide (SiO2)
Clear Quartz (Cut/Faceted Gemstone)
Silicon Dioxide (SiO2)
Yellow Quartz (Citrine Quartz / Milky Quartz)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Smoky Quartz / Calcite)
SiO2 (Silicon Dioxide)
Calcite
Calcium Carbonate (CaCO3)
Quartz Boulder
Silicon Dioxide (SiO2)
Mica (Muscovite or Biotite)
Sheet silicate mineral group (e.g., KAl2(AlSi3O10)(F,OH)2)
Quartz Crystal
Silicon Dioxide (SiO2)
Galena with Pyrite
Lead Sulfide (PbS) associated with Iron Sulfide (FeS2)
Quartz with Matrix
Silicon Dioxide (SiO2)