Rock Identifier

Category

Mineral_rock

Browse mineral_rock specimens identified by the Rock Identifier community.

Learn about Mineral_rock in the encyclopedia

Rock Salt

Calc-Silicate Rock

Calc-Silicate Rock

Halite

Dolomite

Gypsum

Coal

Claystone

Carbonatite

Serpentinite

Skarn

Schist

Shale

White Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

White Quartz

Quartz (Silicon Dioxide, SiO2)

Generic Pebble (Lithic Fragment) — sedimentary

Generic Pebble

Lithic Fragment

Clear Quartz (Rock Crystal) (Crystalline Silicon Dioxide (SiO2)) — gemstone

Clear Quartz (Rock Crystal)

Crystalline Silicon Dioxide (SiO2)

Fossil Snail (Gastropoda fossil) — fossil

Fossil Snail

Gastropoda fossil

Granite Pebble (Granite (Phaneritic Quartz-Feldspar Rock)) — igneous

Granite Pebble

Granite (Phaneritic Quartz-Feldspar Rock)

Pegmatite with Quartz and Feldspar (Intrusive Igneous Rock) — igneous

Pegmatite with Quartz and Feldspar

Intrusive Igneous Rock

Ferruginous Sandstone (with possible Epidote/Chlorite coloring) (Sandstone (SiO2 dominated with Fe2O3 staining)) — sedimentary

Ferruginous Sandstone (with possible Epidote/Chlorite coloring)

Sandstone (SiO2 dominated with Fe2O3 staining)

Dalmatian Jasper (Peralkaline Quartz-Feldspar Rock with Arfvedsonite) — igneous

Dalmatian Jasper

Peralkaline Quartz-Feldspar Rock with Arfvedsonite

Tumbled pale greenish stone, likely serpentine or altered limestone (Probable serpentine-group rock (antigorite/lizardite), possibly serpentinite; identification is visual only) — metamorphic

Tumbled pale greenish stone, likely serpentine or altered limestone

Probable serpentine-group rock (antigorite/lizardite), possibly serpentinite; identification is visual only

Calcite (Calcite (CaCO3)) — Mineral

Calcite

Calcite (CaCO3)

Quartz-rich gravel fragment (Quartz (silicon dioxide, SiO₂), possibly with feldspar or carbonate inclusions) — mineral

Quartz-rich gravel fragment

Quartz (silicon dioxide, SiO₂), possibly with feldspar or carbonate inclusions

River Pebble (Polished Rock Fragment) — sedimentary

River Pebble

Polished Rock Fragment

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Kimberlite (Ultramafic igneous rock) — igneous

Kimberlite

Ultramafic igneous rock

Granite (Plutonic Igneous Rock) — igneous

Granite

Plutonic Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Quartz Vein in Greenstone (Hydrothermal Quartz (SiO2) with Chlorite/Epidote Schist host rock) — metamorphic

Quartz Vein in Greenstone

Hydrothermal Quartz (SiO2) with Chlorite/Epidote Schist host rock

Fossilized Shark Tooth (Otodus obliquus) (Otodus obliquus (Mineral: Fluorapatite)) — mineral

Fossilized Shark Tooth (Otodus obliquus)

Otodus obliquus (Mineral: Fluorapatite)

Banded Sedimentary Rock (Sedimentary rock with Liesegang banding) — sedimentary

Banded Sedimentary Rock

Sedimentary rock with Liesegang banding

Vesicular Basalt (or Porphyritic Scoria) (Vesicular Basalt) — igneous

Vesicular Basalt (or Porphyritic Scoria)

Vesicular Basalt

Quartz (Milky or Yellow/Citrine Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Yellow/Citrine Quartz)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Jasper (Silicon Dioxide (Microcrystalline Quartz, SiO2)) — sedimentary

Jasper

Silicon Dioxide (Microcrystalline Quartz, SiO2)

Amethyst Geode (Amethyst/Purple Quartz (SiO2)) — mineral

Amethyst Geode

Amethyst/Purple Quartz (SiO2)

Amazonite (Microcline (KAlSi3O8 with lead impurities)) — mineral

Amazonite

Microcline (KAlSi3O8 with lead impurities)

Quartz-rich metamorphic rock, likely mica schist (Mica schist; chiefly quartz (SiO₂) with biotite/muscovite mica and possible feldspar) — metamorphic

Quartz-rich metamorphic rock, likely mica schist

Mica schist; chiefly quartz (SiO₂) with biotite/muscovite mica and possible feldspar

Quartz with Tourmaline (Silicon Dioxide with complex boro-silicate (Quartz: SiO2)) — mineral

Quartz with Tourmaline

Silicon Dioxide with complex boro-silicate (Quartz: SiO2)

Fuchsite (Cr-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)) — mineral

Fuchsite

Cr-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)

Cat's Eye Chrysoberyl (Chrysoberyl (BeAl2O4)) — mineral

Cat's Eye Chrysoberyl

Chrysoberyl (BeAl2O4)

Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

Galena (Lead Sulfide (PbS)) — mineral

Galena

Lead Sulfide (PbS)

Quartz with Inclusions (Silicon Dioxide (SiO2)) — mineral

Quartz with Inclusions

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Polished Agate (Yellow/Grey Agate Pendant) (Silicon Dioxide (SiO2)) — mineral

Polished Agate (Yellow/Grey Agate Pendant)

Silicon Dioxide (SiO2)

Quartz (Pink / Ferruginous) (Silicon Dioxide (SiO2)) — mineral

Quartz (Pink / Ferruginous)

Silicon Dioxide (SiO2)