Chert (Arrowhead/Artifact Fragment)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Category
Browse mineral (man made aura treatment) specimens identified by the Rock Identifier community.
Chert (Arrowhead/Artifact Fragment)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Prasiolite (Green Quartz)
Silicon Dioxide (SiO2) with iron impurities
Opalite (a synthetic glass, often confused with Opal)
Silicon dioxide glass (SiO2nH2O, for natural opal)
Man-made Synthetic Material (Costume Faux Fur)
Synthetic Polymer (Polyester/Acrylic)
Citrine
Silicon dioxide (SiO2)
Yellow Quartz (Citrine Quartzite)
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Bauxite
Bauxite (Al(OH)3 mixed with Fe2O3 and clay minerals)
Man-made Synthetic Material (Not a rock or mineral)
Polyester (Polyethylene terephthalate) / Faux Fur
Smoky Quartz
Silicon Dioxide (SiO2)
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Amethyst
Crystalline Silicon Dioxide with Iron impurities (SiO2)
Calcite
Calcium Carbonate (CaCO3)
Jewelry Chain with Blue and Clear Gemstones (Likely Cubic Zirconia)
Cubic Zirconia (ZrO₂), Silver or White Gold/Platinum Alloy
Citrine (Heat-treated Amethyst)
Silicon Dioxide (SiO2) with iron impurities
Himalayan Pink Salt (Halite)
Halite (Sodium Chloride, NaCl)
Druzy Quartz
Quartz (Silicon Dioxide, SiO2)
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Blue Zircon
Zirconium Silicate (ZrSiO4)
Marble (Calcitic)
Metamorphosed Limestone (CaCO3)
Tiger's Eye (dark/grey variant)
Pseudomorph of Quartz after Crocidolite (SiO2)
Aqua Aura Quartz
Titanium/Gold-coated Silicon Dioxide (SiO2)
Black Spinel
Magnesium Aluminum Oxide (MgAl2O4)
Man-made Carved Stone (Scream Mask/Skull motif)
Carved Soapstone or Serpentine-rich rock
Nickel coin (U.S. currency)
Cupronickel (75% Copper, 25% Nickel alloy)
Green Sea Glass
Amorphous Silica (man-made glass), SiO2 + additive metal oxides
Ruby
Corundum (Al2O3 with Chromium impurities)
Aquamarine
Beryl (Be3Al2Si6O18)
Citrine
Silicon dioxide (SiO2) - yellow quartz variety
Pink Dyed Agate
Silicon Dioxide (SiO2) - Variety Agate
Cobalt Glass Slug (Man-made Glass)
Amorphous Silica with Cobalt Oxide (SiO2 + CoO)
Emerald (Faceted Gemstone)
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
Calcite
Calcium Carbonate (CaCO3)
Blue Sapphire
Corundum (Al2O3) with iron and titanium impurities
Lemon Quartz (Orizaba/Citrinated Quartz)
Silicon Dioxide (SiO2) with iron impurities/treatment
Himalayan Pink Salt
Halite (NaCl)
Honey Calcite
Calcium Carbonate (CaCO3)
General Rock and Mineral Collection (Center: Angelite / Blue Anhydrite)
Anhydrite (Calcium Sulfate, CaSO4)
Blue Sapphire (faceted in jewelry)
Corundum (Al2O3)
Calcite
Calcium Carbonate (CaCO3)
Prasiolite
Silicon Dioxide (SiO2)
Blue Crackle Quartz (Dyed Fire Agate/Quartz)
Silicon Dioxide (SiO2) with artificial dye treatment