Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Category
Browse sedimentary (synthetic) specimens identified by the Rock Identifier community.
Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Cubic Zirconia (as used in jewelry setting)
Zirconium dioxide (ZrO2)
Asphalt / Road Aggregate
Bituminous Conglomerate (synthetic)
Amber (and Cubic Zirconia)
Fossilized Tree Resin
Cubic Zirconia
Zirconium dioxide (ZrO2)
Opalite
Synthetic Glass (Amorphized Silicon Dioxide)
Ruby (in costume jewelry context)
Corundum (Al2O3) with Chromium impurities
Clear Quartz crystals on a Matrix base (Geode fragment)
Silicon Dioxide (SiO2)
The user-provided image does not contain a rock or mineral specimen
Painted River Rock
Polished fluvial clast with acrylic/synthetic pigment coating
Limonite (Iron Ore)
Limonite; FeO(OH)·nH2O
Man-made Synthetic Material (Costume Faux Fur)
Synthetic Polymer (Polyester/Acrylic)
Emerald
Beryl (Be3Al2(SiO3)6) colored by Chromium and/or Vanadium
Hematite
Iron(III) oxide (Fe2O3)
Opalite (Synthetic Moonstone/Sea Opal)
Silicon Dioxide (SiO2) glass with metallic inclusions
Dyed Agate
Chalcedony (SiO2)
Sandstone (likely Fossilized Wood or Concrete Simulacrum)
Arenite / Silicified Wood / Anthropogenic Concrete
Painted River Rock
Anthropogenic-modified Siliciclastic Sedimentary Rock
Lava Stone and Chakra Beads
Basalt (with various mineral/synthetic beads)
Bituminous Coal
Organic-rich sedimentary rock (Complex hydrocarbons)
Note on Image Identification: Textile
N/A (Anthropogenic material)
Pink Dyed Agate
Silicon Dioxide (SiO2) with synthetic pigment
Goldstone
Aventurine Glass (Man-made)
Opalite
Synthetic Opalised Glass
Opalite (Synthetic Moonstone/Opal)
Synthetic Silica Glass
Opalite
Synthetic Opalised Glass
Opalite
Synthetic Opalised Glass
Opalite (Man-made Glass)
Synthetic Opalised Glass
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Opalite
Synthetic Opalite Glass (Silicon Dioxide)
Blue Sapphire (likely costume glass imitation)
Corundum (Al2O3) with iron/titanium impurities
Emerald
Beryl (Be₃Al₂(SiO₃)‑₆) with Chromium/Vanadium impurities
White Opal
Hydrated Amorphous Silica (SiO2·nH2O)
Opal
Hydrated amorphous form of silica (SiO2·nH2O)
Cubic Zirconia
Cubic Zirconium Dioxide (ZrO2)
Cubic Zirconia
Zirconium dioxide (ZrO2)
Parti Sapphire
Corundum (Al2O3)
Opalite
Synthetic Opalized Glass
Banded Black Onyx (Chalcedony)
Silicon Dioxide (SiO₂)
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
Opalite
Man-made glass (traditionally simulated Opal)
Anthracite Coal
Anthracite (Carbon ≥ 86%)