Slag (Industrial Glass/Glassy Rock)
Anthropogenic Vitreous Material
Category
Browse antropogenic (man made material) specimens identified by the Rock Identifier community.
Slag (Industrial Glass/Glassy Rock)
Anthropogenic Vitreous Material
Opalite (a synthetic glass)
Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant
Sea Glass
Man-made vitreous material (silica-based glass)
Asphalt (Bituminous Pavement)
Bituminous mix (Aggregates with Bitumen binder)
Aura Quartz (Rainbow Quartz)
Silicon Dioxide (SiO2) with metallic vapor coatings
Opalite
Synthetic glass / Opalized glass
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
Green Sea Glass
Man-made vitreous material (silica glass)
Blue-green cabochon, likely chalcedony or treated glass imitation
Cryptocrystalline quartz (chalcedony/possibly chrysoprase); identification uncertain from image
Asphalt Chunk (Bituminous Concrete)
Aggregated Bitumen / Artificial Breccia
Ferrous Slag
Iron/Steel Slag (Complex Calcium-Alumino-Silicates)
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
Blue Goldstone
Aventurine Glass
Stainless Steel (Polished)
Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)
Concrete with Aggregate
Composite construction material; primary matrix is Calcium Silicate Hydrate (C-S-H)
Diamond
Native Carbon (C)
Asphalt Chunk
Asphalt concrete
Opalite
Synthetic Glass (Hydrated Silica Simulant)
Transit Token (RTD Denver)
Nickel-plated brass or bronze alloy (Cu-Sn-Zn-Ni)
Hematite
Iron(III) oxide (Fe2O3)
Likely tumbled or cut quartz/chalcedony fragment
Silicon dioxide (SiO₂), probably microcrystalline quartz or quartz
Mother of Pearl (Nacre)
Aragonite (CaCO3) with Organic Matrix
Cultured Marble (Synthetic)
Polymer-matrix composite (typically calcium carbonate in polyester resin)
Opalite
Synthetic glass / Opaque silicious glass
Not a rock, mineral, or geological specimen
Sandstone (with concrete/human-made layer)
Clastic Sedimentary Rock (primarily Quartz/Feldspar grains)
Concrete
Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)
Cherry Quartz with Rose Quartz
Crystalline Quartz (SiO2) with glass-based synthetic components
Opalite
Man-made Synthetic Glass (Silicon Dioxide with metal additives)
Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
Opalite
Man-made glass (traditionally simulated Opal)
Synthetic Resin / Plastic Figurine
Synthetic Polymer (Copolymer of Polyethylene or Resin)
Bouncy Ball (Synthetic Rubber Polymer)
Polybutadiene / Ethylene Vinyl Acetate (EVA)
Diamond / Clear Quartz / Glass paste
Carbon (Diamond) / Silicon Dioxide (Quartz)
Goldstone
Aventurine glass (Synthetic glass with copper inclusions)
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Citrine Quartz
Citrine (Silicon Dioxide, SiO2)
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Slag Glass
SiO2 (Silicon Dioxide) with impurities
Polished brown jasper (likely brecciated or orbicular jasper)
Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions
Opalite (Synthetic Opalized Glass)
Synthetic Silicon Dioxide (SiO2) glass
Diamond (or Simulant)
Carbon (C)