Quartz
Silicon Dioxide (SiO2)
mineral
Category
Sedimentary And Metamorphic
Browse sedimentary and metamorphic specimens identified by the Rock Identifier community.
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Quartz
Silicon Dioxide (SiO2)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide, FeS2
mineral
Pyrite in Matrix
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite Cube
Iron Sulfide (FeS2)
mineral
Calcite
Calcium carbonate (CaCO3)
mineral
Feldspar
Feldspar (Orthoclase/Microcline)
mineral
Pyrite Nodules / Weathered Pyrite
Iron Sulfide (FeS2)
mineral
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Mica Schist
Metamorphic Schist
metamorphic
Banded gneiss pebble
Gneiss, likely quartz–feldspar–biotite gneiss
metamorphic
Garnet in Matrix
Almandine Garnet (Fe3Al2(SiO4)3)
metamorphic
Weathered mica-rich rock fragment
Likely mica schist or phyllite; identification is uncertain from the image alone
metamorphic
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
mineral
Rhodonite
Inosilicate (Mn,Fe,Mg,Ca)SiO3
mineral
Quartzite with Mica / Gneiss Pebble
Metamorphic Rock (Quartz-Feldspar-Mica aggregate)
metamorphic
Garnet in Schist (Mica Schist with Garnet Inclusion)
Garnetiferous Mica Schist (X3Al2(SiO4)3)
metamorphic
Gneiss
Metamorphic Gneiss
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble
Metamorphic Quartzite
metamorphic
Tumbled banded gneiss
Gneiss, a foliated metamorphic rock; exact mineral composition cannot be determined from the image
metamorphic
Banded gneiss
Foliated gneiss, likely quartz–feldspar–biotite gneiss
metamorphic