Amber
Succinite (fossilized tree resin)
fossil
Category
Synthetic Polymer (Polylactic Acid)
Browse synthetic polymer (polylactic acid) specimens identified by the Rock Identifier community.
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Amber
Succinite
Organic (Mineraloid)
Amber
Succinate (Organic Fossilized Resin)
mineraloid
Diamond (Faceted Gemstone)
Native Carbon (C)
mineral
Amber (Copal)
Fossilized Tree Resin
mineraloid
Cubic Zirconia (Faceted)
Zirconium dioxide (ZrO2)
mineral
Silicon
Crystalline Silicon (Si)
mineral
Cubic Zirconia (Simulated Diamond)
Zirconium dioxide (ZrO2)
mineral
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
gemstone
Cubic Zirconia (Set in Jewelry)
Zirconium Dioxide (ZrO2)
gemstone
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Spinel
Magnesium Aluminum Oxide (MgAl2O4)
mineral
Ruby
Corundum (Al2O3 with Chromium trace)
mineral
Rough Ruby
Corundum (Al2O3 with Chromium impurities)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
mineral
Lapis Lazuli
Lapis lazuli (Rock composed primarily of Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)
metamorphic
Emerald in Matrix
Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium
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
Diamond (or Diamond Simulant)
Carbon (C)
gemstone
Ruby (Corundum)
Corundum (Aluminum Oxide with Chromium), Al2O3:Cr
mineral
Coal (Anthracite/Bituminous)
Carbo fossilium (primarily Carbon)
sedimentary
Diamond (or Cubic Zirconia simulant)
Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ
mineral
Blue Sapphire
Corundum (Al2O3 with trace Titanium and Iron)
mineral
Sandstone (likely Fossilized Wood or Concrete Simulacrum)
Arenite / Silicified Wood / Anthropogenic Concrete
sedimentary
Dyed Agate
Silicon Dioxide (SiO2) - variety Chalcedony
mineral
Amber (Copal)
Succinate (Fossilized Resin)
mineraloid
Goldstone (Brown)
Aventurine Glass (Silicon Dioxide infused with Copper crystals)
mineraloid (man-made glass)
Painted River Rock
Anthropogenic-modified Siliciclastic Sedimentary Rock
Sedimentary
Dyed Agate
Chalcedony (SiO2)
mineral
Opalite
Man-made Glass (SiO2 + additives)
mineraloid (synthetic)
K2 Stone (or K2 Jasper)
Azurite-in-Granite (Potassium Feldspar, Quartz, Plagioclase, Muscovite, and Azurite)
igneous
Garden Quartz (Lodalite)
Silicon Dioxide with various mineral inclusions (SiO2)
mineral
Assorted Semi-Precious Gemstone Crosses
Quartz, Silicates, Carbonates (various)
mineral
Blue Goldstone
Synthetic Avanturine Glass (or Aventurine Glass)
Synthetic Glass
Lava Stone and Chakra Beads
Basalt (with various mineral/synthetic beads)
igneous
Opalite
Synthetic Fluorescent Glass (SiO2 + impurities)
mineraloid (synthetic)
Blue Cracked Quartz (Dyed Fire Crackle Quartz)
Silicon Dioxide (SiO2) with synthetic dye
mineral
Dyed Agate Geode
Silicon Dioxide (SiO2) with artificial pigment
mineral
Asphalt (Bituminous Concrete)
Bituminous mix / Anthropogenic conglomerate
man-made composite (lithified equivalent of sedimentary)