Rock Identifier

Category

Man Made Object (Simulant)

Browse man made object (simulant) specimens identified by the Rock Identifier community.

Learn about Man Made Object (Simulant) in the encyclopedia

Opalite

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Goldstone

Map Jasper

Blue Goldstone

Mandarin Garnet

Mandarin Garnet

Andalusite

Zincite

Transvaal Jade

Marl

Dunite

Coquina

Possible dark igneous rock (Indeterminate; likely basalt or fine-grained mafic rock) — igneous

Possible dark igneous rock

Indeterminate; likely basalt or fine-grained mafic rock

Milky quartz pebble (Quartz (SiO₂), commonly called milky quartz) — mineral

Milky quartz pebble

Quartz (SiO₂), commonly called milky quartz

Banded gneiss (Gneiss; typically quartz–feldspar–mica assemblage) — metamorphic

Banded gneiss

Gneiss; typically quartz–feldspar–mica assemblage

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

White Quartz

Quartz (Silicon Dioxide, SiO2)

Black Jasper (Silicon Dioxide (SiO2) with impurities) — sedimentary

Black Jasper

Silicon Dioxide (SiO2) with impurities

Blue-green fluorite (likely tumbled/polished) (Fluorite, calcium fluoride (CaF₂)) — mineral

Blue-green fluorite (likely tumbled/polished)

Fluorite, calcium fluoride (CaF₂)

Blue Topaz (Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)) — gemstone

Blue Topaz

Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)

Ferruginous Quartz (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — Mineral

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Native Gold (in the form of jewelry) (Gold (Au)) — mineral

Native Gold (in the form of jewelry)

Gold (Au)

Serpentinite (likely brecciated serpentinite) (Serpentinite; primarily serpentine-group minerals (antigorite, lizardite, chrysotile), commonly with magnetite, brucite, and relict olivine/pyroxene) — metamorphic

Serpentinite (likely brecciated serpentinite)

Serpentinite; primarily serpentine-group minerals (antigorite, lizardite, chrysotile), commonly with magnetite, brucite, and relict olivine/pyroxene

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Granite (Intrusive igneous rock) — igneous

Granite

Intrusive igneous rock

Turquoise (Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise

Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)

Sandstone (Quartzose) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (primarily SiO2)

Granite Pebble (Granitoid (Plagioclase, Alkali feldspar, Quartz, Biotite/Amphibole)) — igneous

Granite Pebble

Granitoid (Plagioclase, Alkali feldspar, Quartz, Biotite/Amphibole)

Pegmatite (Granite Pegmatite) — igneous

Pegmatite

Granite Pegmatite

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Fluorite Bracelet (Calcium Fluoride (CaF2)) — mineral

Fluorite Bracelet

Calcium Fluoride (CaF2)

Granite (Intrusive igneous rock primarily composed of quartz, alkali feldspar, and plagioclase) — igneous

Granite

Intrusive igneous rock primarily composed of quartz, alkali feldspar, and plagioclase

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite Boulder (Phaneritic Felsic Igneous Rock) — igneous

Granite Boulder

Phaneritic Felsic Igneous Rock

Pink Granite Pebble (Granite) — igneous

Pink Granite Pebble

Granite

Granite (Intrusive igneous rock) — igneous

Granite

Intrusive igneous rock

Dyed Coral (Calcium carbonate (CaCO3) - Calcite or Aragonite with dye) — organic gemstone

Dyed Coral

Calcium carbonate (CaCO3) - Calcite or Aragonite with dye

organic gemstone

Vesicular Basalt (Vesicular Basalt) — igneous

Vesicular Basalt

Vesicular Basalt

Milky rose quartz (Quartz, silicon dioxide (SiO₂), pink variety likely colored by trace elements or microscopic inclusions) — mineral

Milky rose quartz

Quartz, silicon dioxide (SiO₂), pink variety likely colored by trace elements or microscopic inclusions

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

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

Greenstone (Greenschist-facies basaltic rock) — metamorphic

Greenstone

Greenschist-facies basaltic rock

Red Feldspar (Orthoclase) (Orthoclase Feldspar (KAlSi3O8)) — mineral

Red Feldspar (Orthoclase)

Orthoclase Feldspar (KAlSi3O8)

Chalcedony (Agate Pebble) (Silicon Dioxide (SiO2)) — sedimentary

Chalcedony (Agate Pebble)

Silicon Dioxide (SiO2)

Turquoise (CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Granite Pebble (Intrusive Igneous Rock) — igneous

Granite Pebble

Intrusive Igneous Rock

Granite (Granite) — igneous

Granite

Granite

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Granite (Plutonic Igneous Rock) — igneous

Granite

Plutonic Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Unknown Dark Stone (Unknown) — igneous

Unknown Dark Stone

Unknown

Polished pink-and-gray stone, likely rhodonite-bearing rock (Rhodonite (MnSiO₃) in a manganese-rich metamorphic matrix; exact identification requires testing) — metamorphic

Polished pink-and-gray stone, likely rhodonite-bearing rock

Rhodonite (MnSiO₃) in a manganese-rich metamorphic matrix; exact identification requires testing

Jasper or Chert (Silicon Dioxide (SiO2)) — sedimentary

Jasper or Chert

Silicon Dioxide (SiO2)