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) — igneous

Basalt

Basalt

Basalt (Basalt (composition: Plagioclase, Pyroxene, and Olivine)) — igneous

Basalt

Basalt (composition: Plagioclase, Pyroxene, and Olivine)

Granite (Phaneritic Igneous Rock (Granite)) — igneous

Granite

Phaneritic Igneous Rock (Granite)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Banded Schist (Mica Schist) — metamorphic

Banded Schist

Mica Schist

Muscovite Schist with Muscovite Mica (Muscovite-rich Schist (KAl2(AlSi3O10)(OH)2)) — metamorphic

Muscovite Schist with Muscovite Mica

Muscovite-rich Schist (KAl2(AlSi3O10)(OH)2)

Biotite Schist (Biotite-rich Schist (K(Mg,Fe)3AlSi3O10(F,OH)2)) — metamorphic

Biotite Schist

Biotite-rich Schist (K(Mg,Fe)3AlSi3O10(F,OH)2)

Quartz on Chlorite Schist (Chlorite Schist (Mg,Fe)3(Si,Al)4O10(OH)2 with Quartz (SiO2)) — metamorphic

Quartz on Chlorite Schist

Chlorite Schist (Mg,Fe)3(Si,Al)4O10(OH)2 with Quartz (SiO2)

Porphyritic Rhyolite (Red) (Rhyolite (Porphyry)) — igneous

Porphyritic Rhyolite (Red)

Rhyolite (Porphyry)

Jasper with Epidote Vein (Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate (Ca2(Al,Fe)3(SiO4)3(OH))) — sedimentary

Jasper with Epidote Vein

Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate (Ca2(Al,Fe)3(SiO4)3(OH))

Schist (Mica Schist (Metamorphic Rock)) — metamorphic

Schist

Mica Schist (Metamorphic Rock)

Mica Schist (with Golden/Biotite inclusions) (K(Mg,Fe)3AlSi3O10(F,OH)2 (Biotite), KAl2(AlSi3O10)(F,OH)2 (Muscovite)) — metamorphic

Mica Schist (with Golden/Biotite inclusions)

K(Mg,Fe)3AlSi3O10(F,OH)2 (Biotite), KAl2(AlSi3O10)(F,OH)2 (Muscovite)

Ethiopian Opal (Welo Opal) (Hydrated Amorphous Silica (SiO2·nH2O)) — mineraloid

Ethiopian Opal (Welo Opal)

Hydrated Amorphous Silica (SiO2·nH2O)

Chert (River Pebble) (Silicon Dioxide (SiO2)) — sedimentary

Chert (River Pebble)

Silicon Dioxide (SiO2)

Chert (River Pebble) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (River Pebble)

Cryptocrystalline Quartz (SiO2)

Basalt (with possible fluidal texture) (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt (with possible fluidal texture)

Basalt (Aphanitic Mafic Igneous Rock)

Pink Granite (Phaneritic intrusive igneous rock (Feldspar-Quartz-Mica)) — igneous

Pink Granite

Phaneritic intrusive igneous rock (Feldspar-Quartz-Mica)

Basalt (River Pebble) (Basalt) — igneous

Basalt (River Pebble)

Basalt

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

Basalt

Basalt (Aphanitic Mafic Volcanic Rock)

Basalt Gravel (Aphanitic Mafic Igneous Rock) — igneous

Basalt Gravel

Aphanitic Mafic Igneous Rock

Chert (Nodular Chert) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Nodular Chert)

Microcrystalline Quartz (SiO2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Basalt with Quartz Vein (Basalt containing a microcrystalline quartz (SiO2) intrusion) — igneous

Basalt with Quartz Vein

Basalt containing a microcrystalline quartz (SiO2) intrusion

Pink Granite (Granite (Phaneritic igneous rock)) — igneous

Pink Granite

Granite (Phaneritic igneous rock)

Greenstone (Metabasalt (often contains Chlorite, Actinolite, and Epidote)) — metamorphic

Greenstone

Metabasalt (often contains Chlorite, Actinolite, and Epidote)

Chert Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Pebble

Microcrystalline Quartz (SiO2)

Pink Granite (Phaneritic Plutonic Felsic Rock (Granite)) — igneous

Pink Granite

Phaneritic Plutonic Felsic Rock (Granite)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

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

Basalt

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

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

Basalt River Pebble

Basalt (Aphanitic Mafic Igneous Rock)

Basalt (Basalt) — igneous

Basalt

Basalt

Granite (Felsic Intrusive Igneous Rock) — igneous

Granite

Felsic Intrusive Igneous Rock

Diorite (Salt and Pepper Rock) (Diorite) — igneous

Diorite (Salt and Pepper Rock)

Diorite

Basalt with Phenocrysts (Porphyritic Basalt) (Porphyritic Basalt (primarily Plagioclase and Pyroxene)) — igneous

Basalt with Phenocrysts (Porphyritic Basalt)

Porphyritic Basalt (primarily Plagioclase and Pyroxene)

Granite (Granite) — igneous

Granite

Granite

Basalt (Extrusive Mafic Igneous Rock) — igneous

Basalt

Extrusive Mafic Igneous Rock

Diorite (River Cobble) (Phaneritic Intermediate Igneous Rock) — igneous

Diorite (River Cobble)

Phaneritic Intermediate Igneous Rock

Basalt (Basalt (High-iron/magnesium silicate rock)) — igneous

Basalt

Basalt (High-iron/magnesium silicate rock)

Granite (Granitoid (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8 + SiO2)) — igneous

Granite

Granitoid (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8 + SiO2)

Granite Pebble (Felsic Intrusive Igneous Rock) — igneous

Granite Pebble

Felsic Intrusive Igneous Rock

Diorite (Diorite (Plagioclase-rich phaneritic intrusive)) — igneous

Diorite

Diorite (Plagioclase-rich phaneritic intrusive)

Basalt (Basalt) — igneous

Basalt

Basalt