Rock Identifier

Category

Mineral Based Alloy (Anthropogenic)

Browse mineral based alloy (anthropogenic) specimens identified by the Rock Identifier community.

Learn about Mineral Based Alloy (Anthropogenic) in the encyclopedia

Sard

Sard

White Obsidian

White Obsidian

Glauconite

Glauconite

Halite

Halite

Hutcheonite

Hutcheonite

Sperrylite

Sperrylite

Baddeleyite

Baddeleyite

Anatase

Anatase

Brookite

Brookite

Talc

Talc

Euxenite

Euxenite

Eltyubyuite

Eltyubyuite

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Fuchsite in Quartz (K(Al,Cr)2(AlSi3O10)(OH)2 (Muscovite with Chromium)) — metamorphic

Fuchsite in Quartz

K(Al,Cr)2(AlSi3O10)(OH)2 (Muscovite with Chromium)

Jasper in Quartzite (likely Cinnabar or Iron inclusions) (Silicon dioxide (SiO2) with impurities) — metamorphic

Jasper in Quartzite (likely Cinnabar or Iron inclusions)

Silicon dioxide (SiO2) with impurities

Muscovite Schist with Quartz (KAl2(AlSi3O10)(OH)2 in Schistose matrix) — metamorphic

Muscovite Schist with Quartz

KAl2(AlSi3O10)(OH)2 in Schistose matrix

Coquina or Fossiliferous Limestone (Fossiliferous Calcarenite (CaCO3)) — sedimentary

Coquina or Fossiliferous Limestone

Fossiliferous Calcarenite (CaCO3)

Diorite (Diorite (Intermediate intrusive igneous rock)) — igneous

Diorite

Diorite (Intermediate intrusive igneous rock)

Jasper (likely Kambaba or Crocodile Jasper variety) (Silicon Dioxide (SiO2) with inclusions) — sedimentary

Jasper (likely Kambaba or Crocodile Jasper variety)

Silicon Dioxide (SiO2) with inclusions

Fuchsite (Fuchsite (a variety of Muscovite mica, K(Al,Cr)2(AlSi3O10)(OH)2)) — mineral

Fuchsite

Fuchsite (a variety of Muscovite mica, K(Al,Cr)2(AlSi3O10)(OH)2)

Granite (Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)) — igneous

Granite

Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)

Fossiliferous Limestone (Biogenic Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Fossiliferous Limestone

Biogenic Limestone (Calcium Carbonate, CaCO3)

Fossiliferous Limestone (Carbonate sedimentary rock (CaCO3) with bioclasts) — sedimentary

Fossiliferous Limestone

Carbonate sedimentary rock (CaCO3) with bioclasts

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Quartzite (Iron-stained River Rock) (Metamorphic Rock consisting primarily of Quartz (SiO2)) — metamorphic

Quartzite (Iron-stained River Rock)

Metamorphic Rock consisting primarily of Quartz (SiO2)

Gray Limestone (Carbonate rock (CaCO3)) — sedimentary

Gray Limestone

Carbonate rock (CaCO3)

Basalt (Basalt (Extrusive Igneous Rock)) — igneous

Basalt

Basalt (Extrusive Igneous Rock)

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

Granite (Felsic Intrusive Igneous Rock) — igneous

Granite

Felsic Intrusive Igneous Rock

Conglomerate (Clastic Sedimentary Rock) — sedimentary

Conglomerate

Clastic Sedimentary Rock

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Basalt (Mafic Volcanic Rock (composed of plagioclase, pyroxene, and olivine)) — Igneous

Basalt

Mafic Volcanic Rock (composed of plagioclase, pyroxene, and olivine)

Graywacke with Quartz Vein (Lithic Sandstone (Graywacke)) — sedimentary

Graywacke with Quartz Vein

Lithic Sandstone (Graywacke)

Basalt (Mafic Igneous Rock (primarily Plagioclase and Pyroxene)) — igneous

Basalt

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Granite (Felsic Plutonic Rock (Granite)) — igneous

Granite

Felsic Plutonic Rock (Granite)

Basalt (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

Granite (Granite (Felsic intrusive igneous rock)) — igneous

Granite

Granite (Felsic intrusive igneous rock)

Granite (Felsic Intrusive Igneous Rock) — igneous

Granite

Felsic Intrusive Igneous Rock

Basalt (Basalt (Mafic Extrusive)) — igneous

Basalt

Basalt (Mafic Extrusive)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Basalt (Weathered) (Mafic Igneous Rock) — igneous

Basalt (Weathered)

Mafic Igneous Rock

Basalt (Basalt (Ma-Fe Silicate)) — igneous

Basalt

Basalt (Ma-Fe Silicate)

Basalt (Vesicular) (Aphanitic Mafic Volcanic Rock) — igneous

Basalt (Vesicular)

Aphanitic Mafic Volcanic Rock

Coquina or Fossiliferous Limestone (Fossiliferous Calcarenite (CaCO3)) — sedimentary

Coquina or Fossiliferous Limestone

Fossiliferous Calcarenite (CaCO3)

Granite (Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)

Basalt (River Stone) (Extrusive mafic igneous rock) — igneous

Basalt (River Stone)

Extrusive mafic igneous rock

Basalt (River Pebble) (Extrusive mafic igneous rock) — igneous

Basalt (River Pebble)

Extrusive mafic igneous rock

Granite (Phaneritic Igneous Rock (Granitic)) — igneous

Granite

Phaneritic Igneous Rock (Granitic)

Granite (Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)

River Cobble (likely Basalt) (Mafic Igneous Rock (Aphanitic)) — Igneous

River Cobble (likely Basalt)

Mafic Igneous Rock (Aphanitic)

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

Granite (Granite (Mainly Quartz, Feldspar, and Mica)) — igneous

Granite

Granite (Mainly Quartz, Feldspar, and Mica)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Basalt (Porphyritic) (Porphyritic Basalt) — igneous

Basalt (Porphyritic)

Porphyritic Basalt