Heat-Treated Amethyst (Commercial Citrine)
Silicon Dioxide (SiO2) - Macro-crystalline Quartz
Category
Browse mineral (man made aura treatment) specimens identified by the Rock Identifier community.
Heat-Treated Amethyst (Commercial Citrine)
Silicon Dioxide (SiO2) - Macro-crystalline Quartz
Black Onyx
Silicon Dioxide (SiO2) with cryptocrystalline structure
Moissanite
Silicon Carbide (SiC)
Amethyst
Amethyst (SiO2 - Silicon Dioxide with iron impurities)
Diamond (Cut jewelry specimen)
Diamond (pure Carbon, C)
Diamond
Carbon (C)
Diamond (Colorless/White)
Carbon (C)
Rough Sapphire (Corundum)
Corundum (Al2O3)
Sulfur
Native Sulfur (S8)
Himalayan Pink Salt
Halite (NaCl) with trace minerals (Iron, Magnesium, Potassium)
Orange Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Diamond (in a jewelry setting)
Carbon (C)
Black Spinel
Magnesium Aluminum Oxide (MgAl2O4)
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
Diamond
Native Carbon (C)
Diamond (as set in a gold ring)
Carbon (C)
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Turquoise
Hydrous phosphate of copper and aluminum (CuAl6(PO4)4(OH)8·4H2O)
Rough Diamond
Native Carbon (C)
Diamond (in a cluster setting)
Crystallized Carbon (C)
Orange Quartz with Hematite inclusions
Quartz (SiO2) with Hematite (Fe2O3) inclusions
Malaysian 50 Sen Coin
Coinage (specific alloy unknown without metallurgical analysis, but typically brass or bronze for this denomination and era)
Sapphire
Corundum (Al2O3)
Diamond Druzy (Crystalline Diamond)
Carbon (C)
Diamond
Diamond (pure native carbon, C)
Diamond (as featured in jewelry)
Diamond (C - pure carbon)
Carnelian
Carnelian (a variety of Chalcedony, which is a microcrystalline quartz, SiO2)
Ruby in Matrix
Corundum (Al2O3)
Amethyst
Quartz variety; chemical formula: SiO₂ (silicon dioxide) with Fe³⁺ impurities
Cardstock (Paper)
Cellulose (C6H10O5)n
Blue Goldstone
Aventurine Glass (SiO2 with Cobalt/Copper inclusions)
Slag (Anthropogenic Glass/Iron byproduct)
Ferro-silicate Slag
Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)
Silicon Dioxide (SiO2) with metallic inclusions
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3)
Note on Image Identification: Textile
N/A (Anthropogenic material)
Asphalt (Bituminous Concrete)
Bituminous Concrete / Pavement
Quartz (Engineered Quartz Surface)
Silicon Dioxide (SiO2) based composite
Sandstone Concretion
Sedimentary concretion
Blue Lace Agate
Chalcedony (SiO2) with trace inclusions
Green Glass Slag
Amorphous Silicon Dioxide (SiO2) with metal oxide impurities
Porcelain (Stoneware Ceramic)
Mullite / Silica-glass composite (Al6Si2O13)