Quartzite (Engineered Stone)
Silicon Dioxide (SiO2) based synthetic composite
Category
Browse antropogenic rock (man made) specimens identified by the Rock Identifier community.
Quartzite (Engineered Stone)
Silicon Dioxide (SiO2) based synthetic composite
Rock crystal quartz fragments
Quartz (silicon dioxide, SiO₂)
Green Obsidian Sphere (man-made glass)
Vitreous Silica with Chromium/Iron additives
Aluminum Slag
Anthropogenic Aluminum (Al)
Smelter Slag
Anthropogenic Silicate Slag
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Polished dendritic agate or jasper
Microcrystalline quartz (SiO₂), likely chalcedony with iron/manganese dendrites
Blue-green faceted gemstone, possibly glass or synthetic material
Not identifiable from the image; possible synthetic spinel or glass
Man-made Jewelry (Metal and Glass/Plastic)
Synthetic Alloy and Amorphous Solid (SiO2/Polymer)
Mystic Topaz (Treated Quartz or Topaz)
Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating
Sandstone Concretion
Limonitic Sandstone Concretion
Vesicular basalt (probable iron-rich volcanic rock)
Basalt; chiefly plagioclase, clinopyroxene, olivine, and Fe-Ti oxides
Opalite
Synthetic Opalite (Man-made glass)
Cullet Glass (Slag)
Amorphous Silicon Dioxide (Man-made)
Green Sea Glass
Man-made silicate glass (weathered)
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Crushed Stone (Likely Limestone or Granite)
Calcium Carbonate (CaCO3) for Limestone / Quartz and Feldspar for Granite
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Asphalt (Bituminous Concrete)
Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)
Opalite (Man-made Glass)
Fused glass (typically made of dolomite and metal opacifiers)
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Man-made)
Man-made earbud charging case (Not a rock or mineral)
Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components
Baked-clay ceramic fragment (likely brick or pottery)
Fired clay, primarily aluminosilicate minerals; not a natural rock
Slag
Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)
Sandstone Concretion
Clastic sedimentary rock (primarily Quartz SiO2)
Chert Arrowhead (Projectile Point)
Microcrystalline Quartz (Chert or Flint)
Sandstone Concretion
Clastic Sedimentary Rock (primarily SiO2 with mineral cement)
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Slag (Industrial Glass/Glassy Rock)
Anthropogenic Vitreous Material
Green sea glass (likely bottle glass)
Man-made soda-lime silicate glass; not a natural mineral
Green sea glass (likely bottle glass)
Man-made soda–lime silicate glass; not a natural mineral
Slag Glass
Vitreous Silicate Residue
Opalite
Synthetic Glass (Silica-based)
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
Asphalt Concrete
Bituminous Concrete
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Titanium Aura Quartz
Titanium bonded Silicon Dioxide (SiO2 + Ti)
Chert Concretion (with typical hematite/limonite staining)
Sedimentary Concretion (SiO2 with FeO(OH)⋅nH2O)
Clear quartz fragment (rock crystal)
Quartz, silicon dioxide (SiO₂)
Blue Goldstone
Auraventurine (Synthetic glass with cobalt and copper inclusions)
Aura Quartz (Titanium Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti)
Concrete
Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)