Ruby
Corundum (Al2O3)
mineral
Category
Synthetic Glass (Often Categorized As A Simulated Mineral)
Browse synthetic glass (often categorized as a simulated mineral) specimens identified by the Rock Identifier community.
Learn about Synthetic Glass (Often Categorized As A Simulated Mineral) in the encyclopedia
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White Sapphire
Corundum (Al2O3)
mineral
Lapis Lazuli
Lapis lazuli (Rock composed primarily of Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)
metamorphic
Amethyst
Amethyst (SiO2 - Silicon Dioxide with iron impurities)
Mineral
Ruby (varietal of Corundum)
Corundum (Al2O3:Cr)
gemstone
Carborundum (Silicon Carbide)
Silicon carbide (SiC)
mineral
Dyed Agate Slice
Silicon Dioxide (SiO2) with artificial dyes
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
![Turquoise (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]) — Mineral](https://media.rockidentification.com/93306e99-639b-48d3-a99c-0b95cec08800-thumbnail.jpg)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Mineral
![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.)) — Mineral](https://media.rockidentification.com/ac5a19c1-d5b9-4c2e-8fab-285264802654-thumbnail.jpg)
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.)
Mineral
Plastic Building Toy (Lego-style piece)
Acrylonitrile Butadiene Styrene (ABS)
not a rock/mineral
Diamond (or Cubic Zirconia simulant)
C (Carbon) or ZrO2 (Zirconium Dioxide)
gemstone
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Synthetic (not a rock or mineral)
Diamond (or Clear Quartz / Cubic Zirconia)
Carbon (C) or Silicon Dioxide (SiO2) / Cubic Zirconia (ZrO2)
gemstone
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
mineral
Moissanite
Silicon Carbide (SiC)
mineral
Cubic Zirconia (as a jewelry specimen)
Zirconium dioxide (ZrO2)
mineral
Lapidary Wax (imitation/wax model)
Hydrocarbon wax blend with colorant (imitating Lapis Lazuli/Emerald)
mineral
Bismuth
Bismuth (Bi)
mineral
Lapis Lazuli
Lapis Lazuli (a rock composed primarily of Lazurite, Sodalite, Calcite, and Pyrite)
Mineral
Cubic Zirconia (CZ)
Cubic Zirconium Dioxide (ZrO2)
mineral (synthetic)
Opalite
Man-made Glass (SiO2 + additives)
mineraloid (synthetic)
Coal (Anthracite/Bituminous)
Carbo fossilium (primarily Carbon)
sedimentary
Sapphire
Corundum (Al2O3)
gemstone
Painted River Rock
Anthropogenic-modified Siliciclastic Sedimentary Rock
Sedimentary
Slag Glass (Cullet)
Amorphous Silica (man-made), primarily SiO2 with trace metal oxides
Mineraloid / Synthetic Glass
Aura Quartz
Silicon Dioxide (SiO2) with Titanium/Metal vapor coating
mineral
Pink Cubic Zirconia (CZ)
Zirconium Dioxide (ZrO2)
mineral (synthetic)
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
mineral (synthetic)
Red synthetic corundum (ruby-colored lab-grown sapphire)
Corundum, aluminum oxide (Al₂O₃), likely synthetic and chromium-colored
gemstone
Blue Sapphire
Corundum (Al2O3) with traces of Iron and Titanium
mineral
Cubic Zirconia
Zirconium Dioxide (ZrO2)
mineral
Diamond (Faceted)
Diamond (Pure Carbon, C)
gemstone
Amazonite
KAlSi3O8 (Potassium Feldspar, variety of Microcline)
Mineral
Rough Diamond (Uncut Diamond)
Native Carbon (C)
gemstone
Man-made Crystal (Lead Glass)
Lead oxide-doped Silica Glass (approx. SiO2 + PbO)
Mineraloid/Synthetic Material
Ruby
Corundum (Al2O3)
mineral
Synthetic Ruby (Jewel Bearings)
Synthetic Corundum (Al2O3 doped with Chromium)
mineral
Man-made Jewelry Charm (Enameled Metal)
Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.
Synthetic / Manufactured Artifact
Aquamarine
Beryl (Be3Al2Si6O18), specifically the blue-green variety
Mineral
Diamond (or Diamond Simulant)
Carbon (C) or Cubic Zirconia (ZrO2)
gemstone
Emerald
Beryl (Be3Al2(SiO3)6) colored by Chromium and/or Vanadium
mineral