Sandstone (with Liesegang rings or joints)
Clastic Sedimentary Rock (primarily Quartz with Iron Oxide cement)
Category
Browse man made rock (technosol) specimens identified by the Rock Identifier community.
Sandstone (with Liesegang rings or joints)
Clastic Sedimentary Rock (primarily Quartz with Iron Oxide cement)
Stainless Steel (Polished)
Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)
Clear quartz sphere
Quartz (silicon dioxide, SiO₂)
Asphalt Chunk (Bituminous Concrete)
Aggregated Bitumen / Artificial Breccia
Cobalt Blue Glass / Cullet Glass
Silicon dioxide (Amorphous man-made glass)
Chert Concretion
Chert (Microcrystalline Quartz, SiO2)
Asphalt (Bituminous pavement)
Bituminous concrete / Asphalt
Conglomerate
Conglomerate Rock (Paraconglomerate)
Slag
Metallurgical Slag
Asphalt (Road Aggregate)
Bituminous Conglomerate / Asphalt Concrete
Tumbled milky quartz pebble
Quartz (silicon dioxide, SiO₂)
Pyrite in Quartz (Drill Core)
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions
Sandstone Anvil / Nutting Stone
Quartzose Sandstone (Sedimentary Rock)
Opalite
Synthetic Opalite Glass
Polymer Clay (Mock Mineral)
Polyvinyl chloride (PVC) with plasticizers and pigment
Tumbled clear quartz (rock crystal)
Quartz, silicon dioxide (SiO₂)
Goldstone
Man-made glass with copper inclusions
Concrete
Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)
Opalite (Man-made Glass)
Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)
Moldavite
Tektite (Impact Glass), ~80% SiO2 + Al2O3
Opalite
Synthetic Opalite Glass / Opalized Glass
Possible obsidian or slag glass
Volcanic glass, primarily SiO₂; alternatively industrial iron-rich glassy slag
Clear quartz tumbled stone
Quartz (silicon dioxide, SiO₂)
Polished black pebble, likely basalt
Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase feldspar and pyroxene, commonly with olivine
Rock crystal quartz fragments
Quartz (silicon dioxide, SiO₂)
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Green Obsidian Sphere (man-made glass)
Vitreous Silica with Chromium/Iron additives
Opalite
Synthetic Opalite (Man-made glass)
Concrete with Exposed Aggregate
Anthropogenic conglomerate (Concrete)
Quartzite (Engineered Stone)
Silicon Dioxide (SiO2) based synthetic composite
Goldstone
Man-made glass with copper inclusions
Cullet Glass (Slag)
Amorphous Silicon Dioxide (Man-made)
Green Sea Glass
Man-made silicate glass (weathered)
Man-made Jewelry (Metal and Glass/Plastic)
Synthetic Alloy and Amorphous Solid (SiO2/Polymer)
Polished dendritic agate or jasper
Microcrystalline quartz (SiO₂), likely chalcedony with iron/manganese dendrites
Likely iron-rich slag or weathered ironstone fragment
Uncertain; possibly iron oxide–rich material (hematite/goethite) or industrial iron slag
Blue-green faceted gemstone, possibly glass or synthetic material
Not identifiable from the image; possible synthetic spinel or glass
Vesicular basalt (probable iron-rich volcanic rock)
Basalt; chiefly plagioclase, clinopyroxene, olivine, and Fe-Ti oxides
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)
Mystic Topaz (Treated Quartz or Topaz)
Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating
Sandstone Concretion
Limonitic Sandstone Concretion