Opalite (Synthetic Opalized Glass)
Synthetic Silicon Dioxide (SiO2) glass
Category
Browse anthropogenic (man made material) specimens identified by the Rock Identifier community.
Opalite (Synthetic Opalized Glass)
Synthetic Silicon Dioxide (SiO2) glass
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Diamond (or Simulant)
Carbon (C)
Sea Glass
Silicon dioxide (mostly)
Carborundum (Silicon Carbide)
Silicon carbide (SiC)
Chert Arrowhead
Cryptocrystalline Quartz (SiO2)
Goldstone
Avventurina (Man-made Glass with Copper inclusions)
Quartz pebble (Quartztite fragment)
Silicon Dioxide (SiO2)
Slag (Anthropogenic Glass/Iron byproduct)
Ferro-silicate Slag
Diamond
Carbon (C)
Synthetic Costume Accessory (Non-Geological)
Polyester and Acrylic Fiber (Anthropogenic polymer)
Goldstone
Aventurine Glass (Man-made glass with copper inclusions)
Slag (Industrial)
N/A (Anthropogenic Slag)
Goldstone (Brown/Gold)
Aventurine Glass (Man-made glass with Copper inclusions)
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
Opalite
Man-made Opalized Glass (Synthetic Glass)
Polished black stone, likely black obsidian
Obsidian (volcanic glass), chiefly silica-rich rhyolitic composition
Blue Crackle Quartz (Dyed Quarzite)
Silicon Dioxide (SiO2) with artificial dye
Dyed Aura Quartz
Silicon Dioxide (SiO2) with metallic coating
Blue Obsidian (Cullet Glass)
Silicon Dioxide (Amorphous Glass)
Clay Brick
Ceramic structural unit (Al2O3·2SiO2·2H2O as precursor)
Goldstone (Red)
Aventurine Glass (SiO2 + Cu)
Goldstone (Red)
Aventurine Glass (Cupriferous glass)
Sea Glass
Man-made silicate glass
Opalite
Man-made opalescent glass
Opalite
Man-made opalized glass
Slag Glass
Amorphous Silicate (Man-made)
Metal Alloy (Likely Pewter or Sterling Silver)
Not a natural geological specimen; composed of refined metals. If pewter, it's a tin-based alloy. If sterling silver, it's 92.5% silver and 7.5% other metals (usually copper).
Carborundum
Silicon Carbide (SiC)
Opalite
Synthetic Opalite Glass / Opalized Glass
Mystic Topaz (Treated Quartz or Topaz)
Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating
Sandstone Concretion
Limonitic Sandstone Concretion
Cullet (Slag Glass)
Amorphous Silica (Industrial byproduct)
Titanium Coated Kyanite (Aura Kyanite)
Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating
Slag (Industrial Byproduct)
Anthropogenic Vitreous Silicate material
Sea Glass (White/Clear)
Amorphous Silica (Alkali-Lime-Silica Glass), SiO2 + Na2O + CaO
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Pink Cubic Zirconia (CZ)
Zirconium Dioxide (ZrO2)
Asphalt (Bituminous Concrete)
Bituminous mix / Anthropogenic conglomerate
Aura Quartz (Titanium Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti)
Concretion (Sandstone)
Carbonate-cemented Sandstone Concretion
Blue Obsidian
Volcanic Glass (SiO2 with inclusions)