Rock Identifier

Category

Man Made Material (Simulated Mineral)

Browse man made material (simulated mineral) specimens identified by the Rock Identifier community.

Learn about Man Made Material (Simulated Mineral) in the encyclopedia

Opalite

Goldstone

Blue Goldstone

Dunite

Zincite

Claystone

Carbonatite

Marl

Dalmatian Jasper

Dalmatian Jasper

Mint Obsidian

Crimson Obsidian

Lherzolite

Milky Quartz with Iron Staining (Silicon Dioxide (SiO2)) — mineral

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Polychrome Jasper (Desert Jasper) (Silicon Dioxide (SiO2) with iron and mineral inclusions) — sedimentary

Polychrome Jasper (Desert Jasper)

Silicon Dioxide (SiO2) with iron and mineral inclusions

Fossilized Mammoth Tooth Fragment (Mammuthus primigenius (or Mammuthus sp.)) — fossil

Fossilized Mammoth Tooth Fragment

Mammuthus primigenius (or Mammuthus sp.)

Spinosaurus aegyptiacus Fossil (Spinosaurus aegyptiacus (permineralized hydroxyapatite)) — fossil

Spinosaurus aegyptiacus Fossil

Spinosaurus aegyptiacus (permineralized hydroxyapatite)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Petrified Wood (Silicified wood (Quartz/Chalcedony/Opal)) — sedimentary

Petrified Wood

Silicified wood (Quartz/Chalcedony/Opal)

Chert (Jasper/Limonitic Chert) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Limonitic Chert)

Microcrystalline Quartz (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Petrified Wood (Agatized/Silicified Wood) (Silicified Paleoxylon (primarily SiO2)) — sedimentary

Petrified Wood (Agatized/Silicified Wood)

Silicified Paleoxylon (primarily SiO2)

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

Agate (Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Agate (Chalcedony)

Silicon Dioxide (SiO2)

Banded agate (likely carnelian/chalcedony) (Microcrystalline quartz, SiO₂; iron-stained chalcedony) — mineral

Banded agate (likely carnelian/chalcedony)

Microcrystalline quartz, SiO₂; iron-stained chalcedony

Quartz (or Chert/Flint) (Silicon Dioxide (SiO2)) — mineral

Quartz (or Chert/Flint)

Silicon Dioxide (SiO2)

White quartz pebble (Quartz (SiO₂), likely milky quartz) — mineral

White quartz pebble

Quartz (SiO₂), likely milky quartz

Tumbled serpentine with dark magnetite/chromite matrix (Serpentinite; chiefly antigorite/lizardite, Mg3Si2O5(OH)4, with magnetite and possibly chromite) — metamorphic

Tumbled serpentine with dark magnetite/chromite matrix

Serpentinite; chiefly antigorite/lizardite, Mg3Si2O5(OH)4, with magnetite and possibly chromite

Milky Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Milky Quartz Pebble

Silicon Dioxide (SiO2)

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

White Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Red Siltstone (Siltstone (composed of Quartz and Clay minerals)) — sedimentary

Red Siltstone

Siltstone (composed of Quartz and Clay minerals)

Bauxite (Aluminum ore (mixture of gibbsite Al(OH)3, boehmite γ-AlO(OH), and diaspore α-AlO(OH))) — sedimentary

Bauxite

Aluminum ore (mixture of gibbsite Al(OH)3, boehmite γ-AlO(OH), and diaspore α-AlO(OH))

Quartz (Grain) (Silicon Dioxide (SiO2)) — mineral

Quartz (Grain)

Silicon Dioxide (SiO2)

Dark green metamorphic rock, likely serpentinite (Serpentinite, composed mainly of serpentine-group minerals (antigorite, lizardite, or chrysotile), commonly with magnetite and minor chlorite/talc) — metamorphic

Dark green metamorphic rock, likely serpentinite

Serpentinite, composed mainly of serpentine-group minerals (antigorite, lizardite, or chrysotile), commonly with magnetite and minor chlorite/talc

Weathered quartz-rich rock, likely quartzite or altered sandstone (Quartzite (mostly microcrystalline quartz, SiO₂); exact identification is uncertain from the photograph) — metamorphic

Weathered quartz-rich rock, likely quartzite or altered sandstone

Quartzite (mostly microcrystalline quartz, SiO₂); exact identification is uncertain from the photograph

Quartz with Chlorite / Greenschist (Quartz vein in Greenschist (SiO2 with Chlorite group minerals)) — metamorphic

Quartz with Chlorite / Greenschist

Quartz vein in Greenschist (SiO2 with Chlorite group minerals)

Turquoise cabochon (Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O) — mineral

Turquoise cabochon

Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O

Sandstone (Sandstone (Arenite)) — sedimentary

Sandstone

Sandstone (Arenite)

Brecciated Jasper (Silicon Dioxide (SiO2) with iron impurities) — sedimentary

Brecciated Jasper

Silicon Dioxide (SiO2) with iron impurities

Sandstone (Arenite (SiO2 based with primary clasts 0.0625 to 2 mm)) — sedimentary

Sandstone

Arenite (SiO2 based with primary clasts 0.0625 to 2 mm)

Sandstone (Quartz arenite / Lithic sandstone) — sedimentary

Sandstone

Quartz arenite / Lithic sandstone

Ironstone concretion (Siderite or Limonite concretion (FeCO3 or FeO(OH)·nH2O)) — sedimentary

Ironstone concretion

Siderite or Limonite concretion (FeCO3 or FeO(OH)·nH2O)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Sandstone (Red Sandstone) (Arenite (predominantly SiO2 with Fe2O3 cement)) — sedimentary

Sandstone (Red Sandstone)

Arenite (predominantly SiO2 with Fe2O3 cement)

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

Sandstone (Quartzose)

Arenite (primarily SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Sandstone (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone

Clastic Sedimentary Rock (primarily SiO2)

Jasper (Silicon dioxide (SiO2) with impurities) — sedimentary

Jasper

Silicon dioxide (SiO2) with impurities

Chrysocolla on Matrix (Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4·nH2O) — mineral

Chrysocolla on Matrix

Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4·nH2O

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Sandstone (with potential fossil inclusions) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (with potential fossil inclusions)

Clastic sedimentary rock (primarily SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite