Opalite
Synthetic Glass (SiO2 + impurities)
mineral
Category
Synthetic Or Natural Fiber
Browse synthetic or natural fiber specimens identified by the Rock Identifier community.
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Ruby
Corundum (Al2O3 with Chromium traces)
mineral
Cubic Zirconia (CZ)
Zirconium dioxide (ZrO2)
mineral
Red Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with Fe2O3 inclusions)
metamorphic
Diamond (Faceted Gemstone)
Native Carbon (C)
mineral
Goldstone
N/A (Synthetic Glass with Copper Inclusions)
Manufactured Glass
Diamond (Baguette cut)
Carbon (C)
gemstone
Emerald
Beryl (Be3Al2(SiO3)6) colored by Chromium and/or Vanadium
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium
mineral
Opalite
Man-made Glass (SiO2 + additives)
mineraloid (synthetic)
Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)
Silicon Dioxide (SiO2) with metallic inclusions
man-made material
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
mineral
Rough Citrine Quartz
Silicon Dioxide (SiO2) with ferric iron impurities
mineral
Opalite (Synthetic Opalized Glass)
Synthetic Silicon Dioxide (SiO2) glass
mineral
Cubic Zirconia (Man-made)
Cubic Zirconia (ZrO2) with Enamel and Metal Alloy
mineral
K2 Stone (or K2 Jasper)
Azurite-in-Granite (Potassium Feldspar, Quartz, Plagioclase, Muscovite, and Azurite)
igneous
Cubic Zirconia (Diamond Simulant)
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
Diamond (or high-quality simulant like Cubic Zirconia)
Carbon (C) - Native Element
mineral
Opalite
Synthetic Opalite Glass
mineraloid (man-made)
Opalite (a synthetic glass, often confused with Opal)
Silicon dioxide glass (SiO2nH2O, for natural opal)
Synthetic (glass)
Diamond (or Diamond Simulant)
Carbon (C)
gemstone
Asphalt (Bituminous Concrete)
Bituminous mix / Anthropogenic conglomerate
man-made composite (lithified equivalent of sedimentary)
Dyed Agate Geode
Silicon Dioxide (SiO2) with artificial pigment
mineral
Corundum (Pink Sapphire / Ruby)
Al2O3 (Aluminum Oxide)
mineral
Garden Quartz (Lodalite)
Silicon Dioxide with various mineral inclusions (SiO2)
mineral
Cubic Zirconia (Faceted)
Zirconium Dioxide (ZrO2)
mineral
Colorless Gemstone (possibly Diamond or Cubic Zirconia)
C (Diamond) or ZrO2 (Cubic Zirconia)
gemstone
Opalite
Synthetic Opalised Glass
mineraloid (synthetic)
Hematite
Iron(III) oxide (Fe2O3)
mineral
Synthetic Sapphire and Ion-X Glass
Single-crystal Alumina (Al2O3) and Ion-strengthened Aluminosilicate Glass
mineral
Opalite
Synthetic Opalite Glass (Silicon Dioxide)
mineraloid (man-made)
Opalite
Synthetic glass (SiO2 + metal additions)
mineraloid
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Cubic Zirconia (Faceted Gemstone)
Zirconium dioxide (ZrO2)
gemstone
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Goldstone
Synthetic Aventurescent Glass (Cobalt-doped soda-lime glass)
man-made glass
Ruby
Corundum (Al2O3 with Chromium)
mineral
Quartzite (Engineered Stone)
Silicon Dioxide (SiO2) based synthetic composite
metamorphic
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Diamond (or synthetic simulant)
Cubic C (Carbon)
mineral