Pink Cubic Zirconia (CZ)
Zirconium Dioxide (ZrO2)
Category
Browse antropogenic (man made) specimens identified by the Rock Identifier community.
Pink Cubic Zirconia (CZ)
Zirconium Dioxide (ZrO2)
Sandstone (with man-made markings)
Arenite (composed primarily of Quartz, SiO2)
Sea Glass
Amorphous silicon dioxide (SiO2) - Man-made glass tumbled by nature
Raw quartz crystal
Quartz (silicon dioxide, SiO₂), likely milky or included quartz
Pet Rock (Man-made Quartzite or Granite Cobble)
Silicon dioxide (SiO2) mixture; commonly composed of Quartz, Feldspar, and Mica
Blue Goldstone
Synthetic Avanturine Glass (or Aventurine Glass)
Aventurine
Quartz containing inclusions of Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Ferro-silicate Slag
Industrial Vitrified Slag (High-silica amorphous glass)
Cubic Zirconia (Man-made)
Cubic Zirconia (ZrO2) with Enamel and Metal Alloy
Slag Glass (Leland Blue variant)
Anthropogenic Vitreous Silicate
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
Asphalt Chunk
Asphalt concrete
Man-made Jewelry (Metal and Glass/Plastic)
Synthetic Alloy and Amorphous Solid (SiO2/Polymer)
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Dyed Crackle Quartz
Silicon Dioxide (SiO2) with synthetic dye
Dyed Dragon Vein Agate
Silicon Dioxide (SiO2) with artificial pigment
Libyan Desert Glass
Impact-melt silica glass (SiO2 + traces of Al, Fe, Ti)
Sea Glass
Amorphous Silicon Dioxide (Man-made glass weathered by nature)
Possible weathered basalt or slag fragment
Basalt, chiefly plagioclase and pyroxene; identification is uncertain from the image
Chert (Arrowhead/Artifact Fragment)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Sea Glass
Amorphous silicon dioxide (Man-made glass weathered by nature)
Goldstone (with Tiger's Eye and Quartz)
Aventurine glass (Synthetic SiO2 with Cu inclusions)
Carved Mottled Greenish-Yellow Crystal/Glass Object
Unknown; possibly a form of quartz (chalcedony/jadeite/nephrite) or glass/resin.
Blue Impression Jasper beads
Impression jasper (microcrystalline quartz/chalcedony), chiefly SiO₂, with iron-oxide and other mineral inclusions
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
Hematite Beads
Hematite (Fe2O3)
Opalite (a synthetic glass, often confused with Opal)
Silicon dioxide glass (SiO2nH2O, for natural opal)
Man-made Carved Stone (Scream Mask/Skull motif)
Carved Soapstone or Serpentine-rich rock
Green Sea Glass
Amorphous Silica (man-made glass), SiO2 + additive metal oxides
Goldstone (aventurine glass)
Man-made copper-bearing glass; not a natural mineral (commonly sold as blue/brown goldstone)
Man-made Glass (Tumbled/Shaped)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Man-made Crystal (Lead Glass)
Lead oxide-doped Silica Glass (approx. SiO2 + PbO)
Man-made Slag (Industrial Byproduct)
Anthropogenic Glassy Residue
Man-made Dyed Aura Quartz
Silicon Dioxide (SiO2) with metallic coating/dye
Opalite
Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)
Slag Glass (Cullet)
Amorphous Silica (man-made), primarily SiO2 with trace metal oxides
Metal Chain (Likely Steel or a Steel Alloy)
Steel (primarily iron and carbon); specific alloy unknown
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Rainbow Hematite (Man-made/Treated)
Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)
Glass / Silicon Dioxide (Man-made)
SiO2 (Amorphous Silicon Dioxide)
Man-made Blank Ammunition (Brass)
CuZn (Cartridge Brass - roughly 70% Copper, 30% Zinc)