Cobalt Glass Slug (Man-made Glass)
Amorphous Silica with Cobalt Oxide (SiO2 + CoO)
Category
Browse synthetic material (not a rock or mineral) specimens identified by the Rock Identifier community.
Cobalt Glass Slug (Man-made Glass)
Amorphous Silica with Cobalt Oxide (SiO2 + CoO)
Cubic Zirconia (CZ)
Zirconium dioxide (ZrO2)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Sapphire (likely blue synthetic sapphire or blue glass in a ring)
Corundum (Al₂O₃), specifically the blue variety due to trace amounts of iron and titanium impurities. If synthetic, it would still be Al₂O₃.
Man-made earbud charging case (Not a rock or mineral)
Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components
Amazonite
KAlSi3O8 (Potassium Feldspar, variety of Microcline)
Sandstone (Tumbled/River Pebble)
Arenite (composed primarily of SiO2)
Diamond
Diamond (pure carbon; C)
Blue Goldstone
Synthetic Avanturine Glass (or Aventurine Glass)
Grass (Organic Matter/Soil)
Poaceae (family of monocotyledonous flowering plants)
Opalite
Synthetic Glass (SiO2 + impurities)
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(OH)₄(BO₃)₃Si₆O₁₈)
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Hematite
Iron(III) oxide (Fe2O3)
Dyed Alum or Dyed Quartz (Ornamental Crystal)
Silicon Dioxide (SiO2) or Potassium Alum [KAl(SO4)2·12H2O]
Sandstone
Clastic sedimentary rock (primarily SiO2)
Ruby
Corundum (Al2O3 with Chromium)
Blue Sapphire
Corundum (Al2O3)
Opalite
Synthetically produced glass (Silicon Dioxide with metallic inclusions)
Synthetic Ruby (Jewel Bearings)
Synthetic Corundum (Al2O3 doped with Chromium)
Diamond (or Cubic Zirconia)
Crystallized Carbon (C) for Diamond; Zirconium Dioxide (ZrO2) for CZ
Cobaltoan Calcite / Pink Dolomite (Possible)
Cobaltoan Calcite: (Ca,Co)CO3; Pink Dolomite (or Thulite): CaMg(CO3)2 or Mn-Dolomite / (Thulite: Mn2+3Al2(Si2O7)(SiO4)O(OH))
Goldstone
N/A (Synthetic Glass with Copper Inclusions)
Sandstone
Arenite (primarily SiO2)
Cubic Zirconia (CZ)
Cubic Zirconium Dioxide (ZrO2)
Blue Sapphire (Synthetic or Man-made Glass Imitation)
Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic
Zirconia (Ceramic) & Ion-X Glass
Zirconium Dioxide (ZrO2) and Ion-strengthened Aluminosilicate Glass
Blue Goldstone
Aventurine Glass
Chalcanthite (Likely Synthetic/Lab-Grown)
Hydrated copper(II) sulfate (CuSO4·5H2O)
Blue Sapphire (in a faceted jewelry setting)
Corundum (Al2O3) with trace Iron and Titanium
Amber (Simulated/Faturan Style)
Resin mix (Likely Phenolic/Celluloid if synthetic, Succinite if natural)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Silicon Carbide (Carborundum)
Moissanite (SiC), though mostly synthetic
Opalite (Synthetic Moonstone/Opal)
Synthetic Silica Glass
Opalite
Synthetic Opalised Glass
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Goldstone (Red/Brown)
Aventurine Glass (SiO2 with Copper inclusions)
Diamond (or Cubic Zirconia simulant)
Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ
Lapis Lazuli
Lapis Lazuli (a rock composed primarily of Lazurite (Na,Ca)₈[(S,Cl,SO₄,OH)₂|(Al₆Si₆O₂₄)], with varying amounts of Calcite, Pyrite, and Sodalite.)
Moonstone
Orthoclase (Potassium Aluminum Silicate), Formula: (K,Na)AlSi3O8
Hematite
Iron(III) oxide (Fe2O3)