Industrial Slag
Anthropogenic Vitreous Slag
Category
Browse anthropogenic (man made material processed by nature) specimens identified by the Rock Identifier community.
Industrial Slag
Anthropogenic Vitreous Slag
Titanium Aura Quartz
Titanium bonded Silicon Dioxide (SiO2 + Ti)
Cherry Quartz with Rose Quartz
Crystalline Quartz (SiO2) with glass-based synthetic components
Asphalt (Road Aggregate)
Bituminous conglomerate
Opalite
Man-made Synthetic Glass (Silicon Dioxide with metal additives)
Asphalt aggregate (crushed stone in bitumen)
Artificial composite; predominantly crushed granite, basalt, limestone, and/or recycled aggregate bound by bitumen
Pet Rock (Man-made Quartzite or Granite Cobble)
Silicon dioxide (SiO2) mixture; commonly composed of Quartz, Feldspar, and Mica
Opalite crescent pendant
Opalite (man-made opalescent glass; not a natural mineral)
Mystic Topaz (Treated Quartz or Topaz)
Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating
Asphalt / Road Aggregate
Bituminous Conglomerate (synthetic)
Citrine Quartz
Citrine (Silicon Dioxide, SiO2)
Opalite
Synthetic glass (SiO2 + metal additions)
Synthetic Blue Aura Quartz
Silicon Dioxide (SiO2) with Metallic Infusion
Titanium Coated Kyanite (Aura Kyanite)
Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating
Opalite
Synthetic Glass (Amorphized Silicon Dioxide)
Concrete with Aggregate
Artificial Conglomerate (Cement and Aggregate)
Cubic Zirconia (Jewelry Setting)
Zirconium Dioxide (ZrO2)
Conglomerate
Conglomerate Rock (Paraconglomerate)
Slag Glass
SiO2 (Silicon Dioxide) with impurities
ABS Plastic (Acrylonitrile Butadiene Styrene)
(C8H8)x·(C4H6)y·(C3H3N)z
Man-made Carved Stone (Scream Mask/Skull motif)
Carved Soapstone or Serpentine-rich rock
Aura Quartz (Titanium Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti)
Slag Glass / Industrial Slag
Anthropogenic Glass
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Sandstone (likely Fossilized Wood or Concrete Simulacrum)
Arenite / Silicified Wood / Anthropogenic Concrete
Opalite
Opalescent Glass (SiO2 + coloring agents)
Granodiorite / Granite (Weathered)
Granodiorite
Green iridescent glass cabochon or synthetic gemstone
Likely synthetic glass; possibly coated synthetic quartz or lab-created green gemstone
Sea Glass (White/Clear)
Amorphous Silica (Alkali-Lime-Silica Glass), SiO2 + Na2O + CaO
Terrazzo (Man-made Composite)
Cementitious or Resin-bound Lithic Composite
Sea Glass
Amorphous silicon dioxide (SiO2) - Man-made glass tumbled by nature
Blue quartzite or blue aventurine glass-like aggregate
Quartzite, predominantly SiO₂ (identification uncertain from image)
Carved Mottled Greenish-Yellow Crystal/Glass Object
Unknown; possibly a form of quartz (chalcedony/jadeite/nephrite) or glass/resin.
Rainbow Hematite Ring
Iron(III) oxide (Fe2O3) with thin-film coating
Sea Glass
Amorphous silicon dioxide (Man-made glass weathered by nature)
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Concrete fragment or Conglomerate
Artificial Conglomerate (Concrete) or Natural Conglomerate
Opalite
Man-made Glass (SiO2 + additives)
Tumbled black stone, likely black obsidian
Obsidian (volcanic glass; chiefly silica-rich rhyolitic composition)
Cobalt Blue Glass / Cullet Glass
Silicon dioxide (Amorphous man-made glass)
Iron Slag
Ferrous slag (primarily silicates and oxides of calcium, iron, and magnesium)
Polymer Clay (Mock Mineral)
Polyvinyl chloride (PVC) with plasticizers and pigment