Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Category
Sedimentary And Metamorphic
Browse sedimentary and metamorphic specimens identified by the Rock Identifier community.
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Optical Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
mineral
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky or Clear variety with inclusions)
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
White Agate (resembling Bone Chalcedony)
Cryptocrystalline Quartz (SiO2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Dragon Blood Jasper
Epidote and Pietersite-rich Quartz (SiO2 with inclusions)
sedimentary
Quartz (Milky or Grainy Variety)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Clear variety)
Silicon Dioxide (SiO2)
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Pyrite (Fool's Gold) in Matrix
Iron Sulfide (FeS2)
mineral
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
Mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite (clastic/metamorphic subtype)
Quartzite (primarily Silicon Dioxide, SiO2)
metamorphic
Gneiss (Gneissic Granite Pebble)
Metamorphic rock rich in Quartz, Feldspar, and Mica
metamorphic
Conical fossil shell or shell fragment
Likely a gastropod shell fragment; exact taxon indeterminate from the image
fossil
River Cobble (Quartzite / Sandstone Gravel)
SiO2 (Quartz-rich sedimentary/metamorphic rock)
sedimentary
River Pebble (Quartzite / Sandstone)
SiO2 (Quartz-rich sedimentary/metamorphic rock)
sedimentary
Anthracite Coal
Anthracite (Carbon-rich metamorphic sedimentary rock)
sedimentary