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

Fossil Shell (Invertebrate fossil (Mollusca)) — fossil

Fossil Shell

Invertebrate fossil (Mollusca)

Petrified Wood (Silicified wood (principally SiO2)) — fossil

Petrified Wood

Silicified wood (principally SiO2)

Shark Tooth Fossil (Elasmobranchii fossil (likely Carcharias or Odontaspis sp.)) — fossil

Shark Tooth Fossil

Elasmobranchii fossil (likely Carcharias or Odontaspis sp.)

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

Chert (Nodular Chert)

Microcrystalline Quartz (SiO2)

Fossil Shark Tooth (Odontaspididae (likely Carcharias sp.)) — fossil

Fossil Shark Tooth

Odontaspididae (likely Carcharias sp.)

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

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

Chert (Jasper)

Silicon Dioxide (SiO2)

Quartz-rich rock, possibly milky quartz or quartzite (Quartz (silicon dioxide, SiO₂); if granular and foliated, likely quartzite) — mineral

Quartz-rich rock, possibly milky quartz or quartzite

Quartz (silicon dioxide, SiO₂); if granular and foliated, likely quartzite

Sandstone (Red) (Arenite (primarily SiO2 with Iron Oxide staining)) — sedimentary

Sandstone (Red)

Arenite (primarily SiO2 with Iron Oxide staining)

Tumbled green aventurine (Quartz (SiO₂), commonly containing fuchsite mica inclusions) — mineral

Tumbled green aventurine

Quartz (SiO₂), commonly containing fuchsite mica inclusions

Amethyst quartz cluster (Quartz, SiO₂; purple color caused mainly by iron-related defects and irradiation) — mineral

Amethyst quartz cluster

Quartz, SiO₂; purple color caused mainly by iron-related defects and irradiation

Diamond (C (Native Carbon)) — mineral

Diamond

C (Native Carbon)

Diamond (in Matrix) (Carbon (C)) — mineral

Diamond (in Matrix)

Carbon (C)

Libyan Desert Glass (Impactite (vitreous silica), SiO2) — mineral

Libyan Desert Glass

Impactite (vitreous silica), SiO2

Diamond (Faceted) (Carbon (C)) — mineral

Diamond (Faceted)

Carbon (C)

Diamond (Diamond (pure carbon, C)) — mineral

Diamond

Diamond (pure carbon, C)

Aragonite Star Cluster (Aragonite (Calcium Carbonate, CaCO3)) — mineral

Aragonite Star Cluster

Aragonite (Calcium Carbonate, CaCO3)

Red Sandstone (Sandstone (Quartz Arenite with Iron Oxide)) — sedimentary

Red Sandstone

Sandstone (Quartz Arenite with Iron Oxide)

Small rounded pebble, likely quartz-rich stone (Indeterminate from photograph; possibly microcrystalline quartz (SiO₂) or a weathered silicate pebble) — mineral

Small rounded pebble, likely quartz-rich stone

Indeterminate from photograph; possibly microcrystalline quartz (SiO₂) or a weathered silicate pebble

Rough Diamond (Diamond (Native Carbon, C)) — mineral

Rough Diamond

Diamond (Native Carbon, C)

Sandstone (Sandstone (Siliciclastic Sedimentary Rock)) — sedimentary

Sandstone

Sandstone (Siliciclastic Sedimentary Rock)

Sandstone (Ferruginous / River-worn Cobble) (Sandstone (SiO2 with iron oxide impurities)) — sedimentary

Sandstone (Ferruginous / River-worn Cobble)

Sandstone (SiO2 with iron oxide impurities)

Petrified Wood Fragment (Silicified Wood (SiO2)) — fossil

Petrified Wood Fragment

Silicified Wood (SiO2)

Sandstone (Ferruginous) (Clastic Sedimentary Rock (Sandstone)) — sedimentary

Sandstone (Ferruginous)

Clastic Sedimentary Rock (Sandstone)

Travertine (Tufa) (Chemical Sedimentary Rock (CaCO3)) — sedimentary

Travertine (Tufa)

Chemical Sedimentary Rock (CaCO3)

Sandstone (with carbonaceous plant fragments) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (with carbonaceous plant fragments)

Arenite (composed primarily of SiO2)

Mica (Muscovite or Biotite) (Sheet silicate mineral group (e.g., KAl2(AlSi3O10)(F,OH)2)) — mineral

Mica (Muscovite or Biotite)

Sheet silicate mineral group (e.g., KAl2(AlSi3O10)(F,OH)2)

Mica / Muscovite or Biotite (Phyllosilicate mineral group (e.g., KAl2(AlSi3O10)(OH)2)) — mineral

Mica / Muscovite or Biotite

Phyllosilicate mineral group (e.g., KAl2(AlSi3O10)(OH)2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Boulder (Silicon Dioxide (SiO2)) — mineral

Quartz Boulder

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Amazonite (Microcline (variety Amazonite), K(AlSi3O8)) — mineral

Amazonite

Microcline (variety Amazonite), K(AlSi3O8)

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

Milky Quartz/Gray Quartz Pebble

Silicon Dioxide (SiO2)

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

Yellow Quartz Pebble

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Milky Quartz with Mica inclusions (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz with Mica inclusions

Quartz (Silicon Dioxide, SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)