Greenschist
Chlorite Schist
metamorphic
Category
Metamorphic Or Sedimentary
Browse metamorphic or sedimentary specimens identified by the Rock Identifier community.
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Magnetite (Small Granule)
Magnetite (Fe3O4)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
White Buffalo Turquoise (or Howlite/Magnesite)
Calcite/Dolomite or Magnesite with Chert/Quartz inclusions
gemstone
Greenish Metamorphic Rock (likely containing epidote or chlorite)
Metamorphic rock, possibly epidosite or greenstone
Metamorphic
Shale or Argillite
Shale (sedimentary) / Argillite (metamorphic)
Sedimentary or Metamorphic (low-grade)
Kyanite
Kyanite (Al2SiO5)
Mineral
Anthracite Coal
Anthracite (Carbon C)
metamorphic
Garnet-Mica Schist
Garnetiferous Porphyroblastic Schist
metamorphic
Rhodochrosite
Rhodochrosite, Manganese Carbonate (MnCO3)
mineral
Zoisite with Ruby
Anyolite (Calcium aluminum hydroxy silicate with Corundum) Ca2Al3(SiO4)3(OH)
metamorphic
Gneiss (River Cobble)
Metamorphic Gneiss
metamorphic
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Tiger Iron
Tiger Iron (Hematite, Red Jasper, and Tiger's Eye)
metamorphic
Travertine
Terrestrial Sedimentary Limestone (CaCO3)
sedimentary
Magnetite
Magnetite (Fe3O4)
mineral
Almandine Garnet in Schist
Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist
metamorphic
Blue Kyanite
Kyanite (Al2SiO5)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Galena
Lead(II) sulfide (PbS)
mineral
Garnet (Almandine)
Almandine, Fe3Al2Si3O12
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite in Matrix
Iron Disulfide (FeS2)
mineral
Blue Apatite
Fluoroapatite (Ca5(PO4)3F)
mineral
Specular Hematite
Specularite (Fe2O3)
mineral
Riverstone (Quartzite or Siltstone cobble)
Quartzite (primarily SiO2)
metamorphic
Kyanite
Kyanite (Al2SiO5)
Mineral
Fluorite, Turquoise, and Calcite set
Calcium Fluoride (CaF2), Hydrous Phosphate of Copper and Aluminum (CuAl6(PO4)4(OH)8·4H2O), Calcium Carbonate (CaCO3)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Green Opal
Hydrated Silica (SiO2·nH2O)
mineraloid
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Tiger's Eye, Hematite, and Black Obsidian Bracelet
SiO2 (Tiger's Eye), Fe2O3 (Hematite), and 70-75% SiO2 (Obsidian)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Gneiss
Metamorphic Gneiss
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Phyllite
Phyllite (Intermediate grade metamorphic rock)
metamorphic
Graphite
Graphite (C)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Magnetic Sand Grain / Magnetite Pellet
Magnetite (Fe3O4)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral