Red Tiger's Eye beads
Tiger's Eye (variety of Chalcedony, SiO2)
Category
Browse mineral (man made aura treatment) specimens identified by the Rock Identifier community.
Red Tiger's Eye beads
Tiger's Eye (variety of Chalcedony, SiO2)
Dyed Quartz (often sold as 'Blue Quartz' or 'Blue Agate')
Silicon Dioxide (SiO2) with artificial pigment
Asphalt (Bituminous Concrete)
Bituminous mix / Anthropogenic conglomerate
Petrified Wood
Silicified Wood (primarily SiO2)
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
United States Quarter Dollar
Cupronickel Clad Alloy (75% Copper, 25% Nickel over a 100% Copper core)
Crackled Quartz (Blue Dyed)
Silicon Dioxide (SiO2) with anthropogenic dye
Granite
Granite (felsic intrusive igneous rock)
Sea Glass (Teal/Turquoise)
Amorphous Silica (SiO2) with trace metal oxides
Diamond (or Diamond Simulant)
Carbon (C)
Rough Diamond
Diamond (Pure Carbon: C)
Pyrite
Iron Disulfide (FeS2)
Sandstone (likely Fossiliferous)
Arenite / Fossiliferous Sandstone (SiO2 composition)
Granite
Phaneritic Igneous Rock (composed mostly of Quartz, Alkali Feldspar, and Plagioclase)
Serpentinite
Serpentinite (composed primarily of serpentine-group minerals like antigorite, chrysotile, and lizardite; chemical formula varies but generally Mg3Si2O5(OH)4)
Green Glass Cullet / Recycled Glass
Amorphous Silicon Dioxide (SiO2) with various metal oxides
Amethyst
SiO2 (Silicon Dioxide)
Grey Granite
Phaneritic Felsic Intrusive Igneous Rock
Metal Alloy (Jewelry)
Not a naturally occurring rock or mineral; likely a metal alloy for jewelry. Possible compositions include sterling silver (92.5% silver, 7.5% copper), or other silver/gold alloys.
Granite
Phaneritic plutonic rock (SiO2 typically >69%)
Green Banded Chert (Agate/Jasper)
Silicon Dioxide (SiO2) with trace impurities of Chlorite or Glauconite
Chert (Flint variety)
Chert (Microcrystalline or Cryptocrystalline Quartz), SiO2
Jade (likely Nephrite or Jadeite)
Nephrite (a variety of actinolite, Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)
Jade (likely Nephrite Jade based on appearance)
Nephrite (a variety of actinolite, Ca2(Mg,Fe)5Si8O22(OH)2)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Chert (specifically Flint or Common Chert node)
Silicon Dioxide (SiO2)
Granite (weathered pebble)
Granite (plutonic igneous rock)
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Common Marble
Calcium Carbonate (CaCO3)
Quartz (Pebble)
Quartz (SiO₂)
Goldstone
Avventurina (Cu + SiO2 glass)
Slag (Industrial Byproduct)
Ferro-silicate glass (Slag)
Diamond Plate (Steel)
Alloyed Carbon Steel or Aluminum with 'Durbar' pattern
Sea Glass (Frosted Glass)
Amorphous Silica (SiO2) with various additives
Iron Slag
Ferrous slag (primarily silicates and oxides of calcium, iron, and magnesium)
Asphalt Chunk (with aggregate)
Bituminous concrete / Anthropogenic conglomerate
Slag
Ferrous Slag (Siliceous industrial waste)
Sea Glass (Uranium/Vaseline Glass variant)
Silicon Dioxide (SiO2) with trace Uranium Oxide (U3O8)
Beaded Jewelry (Assorted Gemstones)
Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ
Cullet Glass (Industrial Slag Glass)
Amorphous Silica (SiO2) with metallic oxide impurities
Clay (as a rock-forming material)
Clay minerals (e.g., Kaolinite group, Smectite group, Illite group, Chlorite group)
Mother of Pearl (Nacre)
Calcium Carbonate (primarily aragonite, with conchiolin)