Aquamarine
Beryl (Be3Al2Si6O18 with iron traces)
mineral
Category
Mineral Based Human Made Alloy
Browse mineral based human made alloy specimens identified by the Rock Identifier community.
Learn about Mineral Based Human Made Alloy in the encyclopedia
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Man-made Green Quartz (Lab-grown or Treated)
Silicon Dioxide (SiO2) with artificial coloration
mineral
Chert (specifically Jasper/Flint pebble)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Painted River Rock
Polished fluvial clast with acrylic/synthetic pigment coating
Sedimentary or Metamorphic (base substrate)
Green Moss Agate
Silicon Dioxide (SiO2) with Mineral Inclusions
sedimentary
Chert (and Jasper/Chalcedony mixture)
Microcrystalline Quartz (SiO2)
sedimentary
Blue Sapphire
Corundum (Al2O3)
mineral
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Tumbled yellow jasper or chert
Microcrystalline quartz (SiO₂), likely iron-oxide-stained chalcedony/chert
mineral
Cubic Zirconia
Zirconium Dioxide (ZrO2)
mineral
Moss Agate
Silicon Dioxide (SiO2) with Chlorite/Hornblende inclusions
mineral
Chalk
Calcium Carbonate (CaCO3)
sedimentary
Colorless faceted gemstone, likely glass or cubic zirconia
Uncertain; possible cubic zirconia (ZrO₂) or quartz (SiO₂), but the image may show a man-made simulant
gemstone
Dragon Vein Agate
Silicon dioxide / Chalcedony (with heat/dye treatment) SiO2
gemstone
Opalite
Synthetic Glass, SiO2 base with metallic inclusions
mineraloid (synthetic)
Chert (Flint variety)
Chert (SiO2)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Unakite
Altered Granite (Epidotized Granite)
metamorphic
Rainbow Hematite (Man-made/Treated)
Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)
mineral
Gold Nugget Jewelry
Native Gold (Au)
mineral
Blue Kyanite
Kyanite (Al2SiO5)
mineral
Moss Agate
Silicon Dioxide (SiO2) with inclusions
mineral
Iron Meteorite
Iron-Nickel Alloy (Kamacite and Taenite)
mineral
Granite
Phaneritic Igneous Rock (composed mostly of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Mixed Mineral Collection (Quartz, Amethyst, Rose Quartz, Pyrite, etc.)
Mixed Silicates and Sulfides (SiO2, FeS2)
mineral
Sandstone
Arenite (SiO2 primarily)
sedimentary
Beryl (var. Aquamarine/Blue Beryl) in Quartz Matrix
Beryllium Aluminum Silicate (Be3Al2Si6O18)
mineral
Native Copper (Tumbled Nugget)
Cu (Native Element)
mineral
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Arsenopyrite
Arsenopyrite (FeAsS)
mineral
Celestine (Celestite)
Strontium sulfate (SrSO4)
mineral
Blue Quartzite
Quartzite (silicon dioxide, SiO2)
metamorphic
Sandstone
Arenite (mostly Quartz-based)
sedimentary
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
mineral
Gold Grain
Native Gold (Au)
mineral
Silver (Native Element)
Ag (Native Silver), with minor Copper (Cu)
mineral
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Chipped Glass/Plastic Fragment
Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic
Man-made material (simulant/artifact)
Green Aventurine (or Xiuyan Jade / Serpentine)
Silicon Dioxide (SiO2) with Fuchsite inclusions or Magnesium Silicate
metamorphic
Sandstone (Quartzose)
Arenite (composed primarily of SiO2)
sedimentary
Schist
Schist (Crystalline Metamorphic Rock)
metamorphic