Composite Turquoise or Reconstituted Turquoise with Copper inclusions
CuAl6(PO4)4(OH)8·4H2O (Turquoise) mixed with matrix and copper/bronze flakes
mineral
Category
Mineraloid (Synthetic)
Browse mineraloid (synthetic) specimens identified by the Rock Identifier community.
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Emerald
Beryl (Be3Al2(SiO3)6)
gemstone
Obsidian
Volcanic Glass (Amorphous silicon dioxide with trace impurities)
igneous
Yellow-orange faceted gemstone, likely citrine or yellow topaz
Citrine: quartz, SiO₂; yellow topaz: Al₂SiO₄(F,OH)₂
gemstone
Blue Goldstone
Aventurine Glass
Man-made glass (often grouped with minerals in lapidary)
Hematite
Iron(III) oxide (Fe2O3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Tektite (likely Australite)
Tektite (no specific chemical formula as it's a natural glass of variable composition, mostly SiO2, Al2O3, FeO, MgO, CaO, K2O, Na2O, TiO2)
Mineral (specifically a mineraloid)
Lapis Lazuli
Lapis Lazuli (Complex aggregate including Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
metamorphic
Diamond
Pure Carbon (C)
mineral
Limonite (Iron Ore)
Limonite (an FeO(OH)·nH2O mineraloid, not a true mineral due to variable composition)
Mineral
Chipped Glass/Plastic Fragment
Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic
Man-made material (simulant/artifact)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Blue Sapphire
Corundum (Al2O3) with traces of Iron and Titanium
mineral
Cubic Zirconia
Zirconium Dioxide (ZrO2)
mineral
Chalcanthite
Copper(II) sulfate pentahydrate (CuSO4·5H2O)
mineral
Staurolite (Cross Stone)
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
SiO2 (Silicon Dioxide)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Ruby
Corundum (Al2O3) with Chromium traces
mineral
Amber
Succinite (specifically for Baltic amber); C10H16O (Variable organic compound)
mineral
Cubic Zirconia (Simulated Diamond)
Zirconium Dioxide (ZrO2)
mineral (synthetic)
Colorless faceted gemstone, likely cubic zirconia
Cubic zirconia (synthetic ZrO₂), possibly glass or quartz
gemstone
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Non-geological
Gold and Cubic Zirconia (San Judas Tadeo Pendant)
Native Gold (Au) with Synthetic Cubic Zirconia (ZrO2)
mineral
![Lapis Lazuli (in Matrix) (Na8[Al6Si6O24]S2 (Lazurite as the primary component)) — metamorphic](https://media.rockidentification.com/cc8b0a02-50a3-4f03-bf51-9245bab011ac-thumbnail.jpg)
Lapis Lazuli (in Matrix)
Na8[Al6Si6O24]S2 (Lazurite as the primary component)
metamorphic
Man-made Polished Porcelain Tile (Artificial Geologic Lookalike)
Fused Silicate Ceramic with Alumina (Synthetic Kaolinite derivative)
Synthetic (Ceramic)
Fursuit (Synthetic Fur Specimen)
Canis anthropomorphus syntheticus
Anthropomorphic Textile Construct
Ring with an Orange Inlay
N/A (Man-made object)
Man-made Object (Ring)
Bismuth
Bismuth (Bi)
Mineral
Lapis Lazuli
Lazurite-dominant rock, (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2
metamorphic
Blue Sapphire
Corundum (Al2O3)
gemstone
Rough Corundum (likely Sapphire or Common Corundum)
Aluminum oxide (Al2O3)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
mineral
White Sapphire
Corundum (Al2O3)
mineral
Terrazzo (Synthetic Composite Rock)
Cementitious or Epoxy Resin-bound Aggregates
Man-made metamorphic-style composite
Diamond
Diamond (C - Pure Carbon)
gemstone
Diamond
Native Carbon (C)
mineral
Goldstone (Red)
Aventurine Glass
Man-made material (Simulated Mineral)
Smoky Quartz
Silicon Dioxide (SiO2)
mineral