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)

Limestone (Sedimentary rock composed primarily of Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary rock composed primarily of Calcium Carbonate (CaCO3)

Basalt (Mafic extrusive igneous rock) — igneous

Basalt

Mafic extrusive igneous rock

Granodiorite (River Rock / Cobble) (Granodiorite; Phaneritic intrusive igneous rock dominated by plagioclase, quartz, and hornblende/biotite) — igneous

Granodiorite (River Rock / Cobble)

Granodiorite; Phaneritic intrusive igneous rock dominated by plagioclase, quartz, and hornblende/biotite

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

Pink Granite

Granite (Phaneritic igneous rock)

Basalt (Basalt (dominated by Plagioclase Feldspar and Pyroxene)) — igneous

Basalt

Basalt (dominated by Plagioclase Feldspar and Pyroxene)

Basalt (with possible iron oxide staining) (Mafic Igneous Rock (primarily Plagioclase and Pyroxene)) — igneous

Basalt (with possible iron oxide staining)

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

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

Chert (Weathered)

Chert (Microcrystalline Quartz, SiO2)

Basalt (Crushed Stone) (Basalt) — igneous

Basalt (Crushed Stone)

Basalt

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Limestone (specifically a Crushed Aggregate fragment) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (specifically a Crushed Aggregate fragment)

Calcium Carbonate (CaCO3)

Porphyritic Basalt (Porphyritic Basalt (containing Plagioclase or Alkali Feldspar phenocrysts)) — igneous

Porphyritic Basalt

Porphyritic Basalt (containing Plagioclase or Alkali Feldspar phenocrysts)

Basalt (Africite (Mafic Igneous Rock)) — igneous

Basalt

Africite (Mafic Igneous Rock)

Limestone (Limestone (Calcium Carbonate: CaCO3)) — sedimentary

Limestone

Limestone (Calcium Carbonate: CaCO3)

Basalt (Vesicular) (Extrusive mafic igneous rock) — igneous

Basalt (Vesicular)

Extrusive mafic igneous rock

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Basalt Pebble (Extrusive mafic igneous rock) — igneous

Basalt Pebble

Extrusive mafic igneous rock

Basalt (Weathered Pebble) (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Basalt (Weathered Pebble)

Basalt (Mafic Extrusive Igneous Rock)

Basalt (Basalt (composition of Plagioclase feldspar and Pyroxene)) — igneous

Basalt

Basalt (composition of Plagioclase feldspar and Pyroxene)

Basalt (Basalt (Aphanitic Mafic Igneous)) — igneous

Basalt

Basalt (Aphanitic Mafic Igneous)

Basalt with Quartz/Quartzite Veins (Aphanitic Mafic Volcanic Rock with Siliceous Infillings) — igneous

Basalt with Quartz/Quartzite Veins

Aphanitic Mafic Volcanic Rock with Siliceous Infillings

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

Granite

Granite (composed of Quartz, Feldspar, and Mica)

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

Pink Granite

Granite (Felsic Plutonic Rock)

Vesicular Basalt (Basalt (SiO2 range 45-52%) with vesicular texture) — igneous

Vesicular Basalt

Basalt (SiO2 range 45-52%) with vesicular texture

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

Basalt

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Diorite (Salt and Pepper Rock) (Diorite (comprising Plagioclase Feldspar, Hornblende, and Biotite)) — igneous

Diorite (Salt and Pepper Rock)

Diorite (comprising Plagioclase Feldspar, Hornblende, and Biotite)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

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

Basalt (River Pebble)

Extrusive mafic igneous rock

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

Basalt Pebble

Mafic Igneous Rock (Basalt)

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt with Quartz Vein (Mafic Volcanic Rock with SiO2 intrusion) — igneous

Basalt with Quartz Vein

Mafic Volcanic Rock with SiO2 intrusion

Basalt (Aphanitic mafic volcanic rock (primarily plagioclase feldspar and pyroxene)) — igneous

Basalt

Aphanitic mafic volcanic rock (primarily plagioclase feldspar and pyroxene)

Granodiorite (Phaneritic intrusive igneous rock (Granodiorite)) — igneous

Granodiorite

Phaneritic intrusive igneous rock (Granodiorite)

Basalt (with Porphyritic or Amygdaloidal features) (Mafic Volcanic Rock (Basalt)) — igneous

Basalt (with Porphyritic or Amygdaloidal features)

Mafic Volcanic Rock (Basalt)

Wishing Stone (Sandstone with Quartz Vein) (Arenite with Quartzite intrusion (SiO₂)) — sedimentary

Wishing Stone (Sandstone with Quartz Vein)

Arenite with Quartzite intrusion (SiO₂)

Granodiorite (Granodiorite) — igneous

Granodiorite

Granodiorite

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

Pink Granite

Granite (Phaneritic intrusive igneous rock)

Basalt (Aphanitic Mafic Igneous Rock) — igneous

Basalt

Aphanitic Mafic Igneous Rock

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

Basalt River Stone

Aphanitic Mafic Igneous Rock (Basalt)

Basalt with Olivine Phenocrysts (Porphyritic Basalt (with (Mg, Fe)2SiO4)) — igneous

Basalt with Olivine Phenocrysts

Porphyritic Basalt (with (Mg, Fe)2SiO4)