Blue Kyanite
Kyanite (Al2SiO5)
mineral
Category
Sedimentary To Metamorphic
Browse sedimentary to metamorphic specimens identified by the Rock Identifier community.
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Tiny rounded metallic-looking pebble, possibly pyrite or a metal-rich mineral
Uncertain from image; possible pyrite (FeS₂), chalcopyrite (CuFeS₂), or magnetite (Fe₃O₄)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Galena
Lead Sulfide (PbS)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (Agate/Jasper pebble)
Silicon Dioxide (SiO2)
mineral
Pink Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcite (CaCO3)
mineral
Mixed Mineral Assortment (Pyrite, Kyanite, Agate, Jasper)
FeS2 (Pyrite), Al2SiO5 (Kyanite), SiO2 (Agate/Jasper)
mineral
Feldspar
KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar group)
mineral
Pyrite Nodule
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Raw Chunk)
Silicon Dioxide (SiO2)
mineral
Pyrite (Fools Gold)
Iron Disulfide (FeS2)
mineral
Quartz (Milky/Snow)
Silicon Dioxide (SiO2)
mineral
Pyrite in Matrix
Iron Disulfide (FeS2)
mineral
Blue Apatite
Fluoroapatite (Ca5(PO4)3F)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Garnet (Almandine)
Almandine, Fe3Al2Si3O12
mineral
Waterworn Pebble / Quartzite
Metamorphic/Sedimentary rock fragment
sedimentary
Gneiss
Metamorphic Gneiss
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Blue Apatite
Calcium phosphate mineral, Ca5(PO4)3(F,Cl,OH)
mineral
Specular Hematite
Specularite (Fe2O3)
mineral
Gneiss
Metamorphic Gneiss
metamorphic
Riverstone (Quartzite or Siltstone cobble)
Quartzite (primarily SiO2)
metamorphic
Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Green Gneiss
Metamorphic Gneiss
metamorphic
Quartz
Silicon Dioxide (SiO2)
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
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral