Diamond
Carbon (C)
mineral
Category
Anthropogenic Sedimentary (Man Made)
Browse anthropogenic sedimentary (man made) specimens identified by the Rock Identifier community.
Learn about Anthropogenic Sedimentary (Man Made) in the encyclopedia
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Blue Lace Agate
Chalcedony (SiO2) with trace inclusions
mineral
Obsidian
Volcanic Glass (Amorphous Silicon Dioxide)
igneous
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Turquoise
Hydrous phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
gemstone
Engineered Quartz Stone
Agglomerated Quartz (SiO2 + Polymer Resin)
mineral-based composite
Diabase (Dolerite)
Diabase / Dolerite
igneous
Goldstone (aventurine glass)
Synthetic copper-bearing soda-lime glass; commonly sold as red goldstone
gemstone
Land Snail Shell
Gastropoda (Calcium Carbonate, CaCO3)
fossil
Pearl (Biogenic Mineraloid)
Calcium carbonate (CaCO3) primarily as Aragonite
mineral
Granite
Plutonic Igneous Rock (composed typically of SiO2, Al2O3, K2O, Na2O, CaO)
igneous
Pearl
Biogenic CaCO3 (Aragonite and Calcite)
mineral
Diamond
Diamond (pure Carbon, C)
mineral
US Penny
Cuprum (Copper: Cu) and Zincum (Zinc: Zn) Alloy
Man-made object (metal alloy)
Pyrite
Iron Disulfide (FeS2)
mineral
Lava Rock (Dyed)
Basalt / Volcanic scoria
igneous
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Marble
Marble (metamorphosed limestone or dolostone), primarily composed of calcite (CaCO3) or dolomite (CaMg(CO3)2)
metamorphic
Engineered Quartz (Quartzite look-alike)
Silicon Dioxide (SiO2) composite
mineral-based composite
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
gemstone
Vesicular Basalt (or Scoria)
Vesicular Basalt
igneous
Pyrite
Iron Sulfide (FeS2)
mineral
Granite
Phaneritic Plutonic Felsic Rock
igneous
Granite
Granite (Phaneritic igneous rock)
igneous
Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Carved quartz skull, likely smoky quartz or gray chalcedony
Silicon dioxide (SiO₂), quartz or microcrystalline quartz
gemstone
Turquoise
Turquoise, CuAl6(PO4)4(OH)8·4H2O
mineral
Diamond
Cubic carbon (C)
mineral
Quartz (Engineered Quartz Surface)
Silicon Dioxide (SiO2) based composite
mineral (man-made composite)
Asphalt (Bituminous Concrete)
Bituminous Concrete / Pavement
man-made (synthetic rock)
Goldstone (Synthetic Aventurescence Glass)
Cuprous Aventurescent Glass (Silicon Dioxide with Copper inclusions)
mineraloid / man-made material
Faceted Glass (Costume Jewelry)
Amorphous Silicon Dioxide with colorants (Glass)
Synthetic/Man-made Material
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Quartzite
Metamorphic Quartzite (primarily SiO2)
metamorphic
Quartzite
Metamorphic Quartzite (primarily SiO2)
metamorphic
Quartz Pebble (Beach Chalcedony)
Silicon Dioxide (SiO2)
mineral
Diabase (Greenstone)
Diabase (also known as Dolerite)
igneous