Ammolite
Biogenic gemstone (Aragonite, CaCO3)
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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Cubic Zirconia
Zirconium dioxide (ZrO2)
mineral
Colorless faceted gemstone (likely cubic zirconia)
Cubic zirconia, ZrO₂ (synthetic zirconium dioxide); possibly synthetic glass or lab-grown diamond
gemstone
![Dyed Alum or Dyed Quartz (Ornamental Crystal) (Silicon Dioxide (SiO2) or Potassium Alum [KAl(SO4)2·12H2O]) — mineral](https://media.rock.id/ecbd7acd-080b-49ec-9a66-4f7067b2e7d5-thumbnail.jpg)
Dyed Alum or Dyed Quartz (Ornamental Crystal)
Silicon Dioxide (SiO2) or Potassium Alum [KAl(SO4)2·12H2O]
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Turquoise cabochon jewelry
Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O
gemstone
Assorted Semi-Precious Gemstone Crosses
Quartz, Silicates, Carbonates (various)
mineral
Dyed Agate
Chalcedony (SiO2)
mineral
Silicon Carbide (Carborundum)
Moissanite (SiC), though mostly synthetic
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Silicon
Element Si
mineral
Diamond (or Cubic Zirconia simulant)
Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Opalite
Man-made Opalized Glass (Synthetic Glass)
gemstone
Goldstone (with Tiger's Eye and Quartz)
Aventurine glass (Synthetic SiO2 with Cu inclusions)
mineral
Ruby (or potential synthetic/imitation)
Corundum (Al2O3)
gemstone
Green cabochon gemstone pendant, likely turquoise or dyed green turquoise
Probably turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; exact identification requires testing
gemstone
Emerald
Beryl (Be₃Al₂(SiO₃)‑₆) with Chromium/Vanadium impurities
mineral
Faceted Clear Quartz or Diamond Simulant
Silicon Dioxide (SiO2) if Quartz or Cubic Zirconia (ZrO2) if Synthetic
gemstone
Pearl
Calcium carbonate (CaCO3) + organic conchiolin
gemstone
Diamond
Natural Diamond (Carbon, C)
gemstone
Blue Sapphire
Corundum (Al2O3)
mineral
Cubic Zirconia
Zirconium Dioxide (ZrO2)
mineral
Malachite
Cu2CO3(OH)2 (Copper Hydroxide Carbonate)
mineral
Crystal Quartz Beads (likely Clear Quartz)
Quartz (SiO₂)
Mineral
Dyed Agate
Silicon Dioxide (SiO2) - variety Chalcedony
mineral
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
gemstone
Opalite
Synthetic Opalized Glass (SiO2 + additives)
mineraloid (man-made)
Composite Turquoise or Reconstituted Turquoise with Copper inclusions
CuAl6(PO4)4(OH)8·4H2O (Turquoise) mixed with matrix and copper/bronze flakes
mineral
Painted River Rock
Artificially Coated Sedimentary Rock
sedimentary
Smoky Quartz (with Druzy/Polished Edge)
Smoky Quartz (Silicon Dioxide, SiO2)
mineral
Colorless faceted gemstone, likely cubic zirconia
Cubic zirconia (synthetic ZrO₂), possibly glass or white sapphire
gemstone
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Pink Dyed Agate
Silicon Dioxide (SiO2) - Variety Agate
mineral
Ametrine
Ametrine (SiO2 - Silicon Dioxide with trace amounts of Iron)
mineral
Ametrine
SiO2 (Silicon Dioxide with iron impurities)
gemstone
Ruby
Corundum (Al2O3 with Chromium impurities)
mineral
Pink Sapphire
Corundum (Al2O3 with trace Chromium and Iron)
mineral
Agate (Polished Sphere)
Silicon Dioxide (SiO2)
mineral
Aquamarine
Aquamarine (Beryl variety); Be3Al2Si6O18
mineral
Chrysocolla in Malachite
Cu2CO3(OH)2 (Malachite) / Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla)
mineral