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

Pink Granite (Phaneritic Plutonic Felsic Rock (rich in Potassium Feldspar)) — igneous

Pink Granite

Phaneritic Plutonic Felsic Rock (rich in Potassium Feldspar)

Chert (Field Stone/Pebble) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Field Stone/Pebble)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Sandstone (with Manganese staining) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (with Manganese staining)

Arenite (composed primarily of SiO2)

Basalt (Mafic Extrusive Igneous Rock) — igneous

Basalt

Mafic Extrusive Igneous Rock

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Limestone (Carbonate rock (CaCO3)) — sedimentary

Limestone

Carbonate rock (CaCO3)

Pink Granite (Granite (Alkali-feldspar granite)) — igneous

Pink Granite

Granite (Alkali-feldspar granite)

Granite Cobble (Granitic intrusive igneous rock (Quartz, Feldspar, Mica)) — igneous

Granite Cobble

Granitic intrusive igneous rock (Quartz, Feldspar, Mica)

Granite (Granite) — igneous

Granite

Granite

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Granite Cobble (Granitoid (composed mainly of Quartz, Feldspar, and Mica)) — igneous

Granite Cobble

Granitoid (composed mainly of Quartz, Feldspar, and Mica)

Basalt (Basalt (Vitreous to Fine-grained Extrusive Igneous Rock)) — igneous

Basalt

Basalt (Vitreous to Fine-grained Extrusive Igneous Rock)

Basalt (Basalt (Mafic volcanic rock)) — Igneous

Basalt

Basalt (Mafic volcanic rock)

Basalt (Mafic Igneous Rock) — igneous

Basalt

Mafic Igneous Rock

Pink Granite (Phaneritic Felsic Intrusive Igneous Rock) — igneous

Pink Granite

Phaneritic Felsic Intrusive Igneous Rock

Gabbro (Water-Worn Cobble) (Gabbro) — igneous

Gabbro (Water-Worn Cobble)

Gabbro

Pink Granite (Granite (composed primarily of Orthoclase Felspar, Quartz, and Plagioclase)) — igneous

Pink Granite

Granite (composed primarily of Orthoclase Felspar, Quartz, and Plagioclase)

River Rock (Quartzite) (Quartzite (SiO2)) — metamorphic

River Rock (Quartzite)

Quartzite (SiO2)

Basalt (Basalt) — igneous

Basalt

Basalt

Blue Goldstone (Synthetic Aventurescent Glass (Cobalt-doped soda-lime glass)) — man-made glass

Blue Goldstone

Synthetic Aventurescent Glass (Cobalt-doped soda-lime glass)

Bloodstone (Heliotrope) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — sedimentary

Bloodstone (Heliotrope)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Coquina (Biogenic Limestone (Calcite, CaCO3)) — sedimentary

Coquina

Biogenic Limestone (Calcite, CaCO3)

Chert (specifically as a lithic artifact/projectile point) (Chert (Silicon dioxide, SiO2)) — sedimentary

Chert (specifically as a lithic artifact/projectile point)

Chert (Silicon dioxide, SiO2)

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

Muscovite Mica (with Schist)

Muscovite - KAl2(AlSi3O10)(OH)2

Muscovite Schist (Mica Schist (KAl2(AlSi3O10)(OH)2)) — metamorphic

Muscovite Schist

Mica Schist (KAl2(AlSi3O10)(OH)2)

Cinnabar in Dolomite or Quartz (Cinnabrite) (Mercury sulfide (HgS) in Dolomite (CaMg(CO3)2)) — metamorphic

Cinnabar in Dolomite or Quartz (Cinnabrite)

Mercury sulfide (HgS) in Dolomite (CaMg(CO3)2)

Fossiliferous Limestone (Coquina / Shell Limestone) (Biogenic Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Fossiliferous Limestone (Coquina / Shell Limestone)

Biogenic Limestone (Calcium Carbonate, CaCO3)

Orbicular Jasper (Silicon Dioxide (SiO2), variety of Chalcedony) — Mineral

Orbicular Jasper

Silicon Dioxide (SiO2), variety of Chalcedony

Peridotite (Ultramafic intrusive rock (Peridotite)) — Igneous

Peridotite

Ultramafic intrusive rock (Peridotite)

Pink Granite (Phaneritic Igneous Rock (high K-feldspar content)) — igneous

Pink Granite

Phaneritic Igneous Rock (high K-feldspar content)

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

Pink Granite

Phaneritic intrusive igneous rock (Granite)

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

Chert

Chert (Microcrystalline Quartz, SiO2)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Basalt (Mafic Igneous Rock) — igneous

Basalt

Mafic Igneous Rock

Basalt (Vesicular) (Basalt) — igneous

Basalt (Vesicular)

Basalt

Coquina (Biogenic Limestone (Calcium Carbonate - CaCO3)) — sedimentary

Coquina

Biogenic Limestone (Calcium Carbonate - CaCO3)

Chert (Nodule) (Chert (Cryptocrystalline Silica, SiO2)) — sedimentary

Chert (Nodule)

Chert (Cryptocrystalline Silica, SiO2)

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

Granite

Granite (composed primarily of Quartz, Feldspar, and Mica)

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

Basalt Pebble

Basalt (Mafic Volcanic Rock)

Ferruginous Sandstone Pebble (Arenite with Iron Oxide matrix) — sedimentary

Ferruginous Sandstone Pebble

Arenite with Iron Oxide matrix

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

Granite (Phaneritic plutonic rock (Quartz, Feldspar, Mica)) — igneous

Granite

Phaneritic plutonic rock (Quartz, Feldspar, Mica)