Asphalt Concrete (Bituminous Concrete)
Bituminous aggregate
Category
Browse anthropogenic sedimentary (man made) specimens identified by the Rock Identifier community.
Asphalt Concrete (Bituminous Concrete)
Bituminous aggregate
Sandstone Concretion
Clastic Sedimentary Concretion (SiO2 with Iron Oxide)
Weathered iron-rich concretion or ironstone nodule
Goethite–hematite limonite concretion (FeO(OH), Fe₂O₃, and hydrated iron oxides)
Crackle Agate / Dyed Quartz
SiO2 (Silicon Dioxide)
Conglomerate
Conglomerate (Sedimentary rock containing rounded clasts)
Slag (Anthropogenic Glass/Iron byproduct)
Ferro-silicate Slag
Sandstone Concretion
Clastic Sedimentary Concretion (typically Quartz/Silica with Iron Oxide)
Asphalt (Bituminous Concrete)
Bituminous mix / Anthropogenic conglomerate
Concretion
Sedimentary Concretion (Ironstone / Calcite Concretion)
Dyed Agate
Chalcedony (SiO2)
Synthetic Costume Accessory (Non-Geological)
Polyester and Acrylic Fiber (Anthropogenic polymer)
Conglomerate
Clastic Sedimentary Rock (Conglomerate)
Sandstone Concretion
Sedimentary Clastic Rock (Silicate-rich)
Asphalt Concrete
Bituminous Concrete / Asphaltic Composite
Sandstone (with Liesegang rings or joints)
Clastic Sedimentary Rock (primarily Quartz with Iron Oxide cement)
Sea Glass
Man-made silicate glass (Amorphous silicon dioxide)
Quartz (Engineered Stone Countertop)
Silicon Dioxide (SiO2) with polymer resins
Chakra Stone (Composite / Man-made Bonded Gemstones)
Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)
Asphalt (Bituminous Pavement)
Bituminous mix (Aggregates with Bitumen binder)
Sea Glass
Man-made silicate glass
Opalite
Man-made opalized glass
Goldstone
Aventurine Glass (Man-made)
Slag Glass
Amorphous Silicate (Man-made)
Ring with an Orange Inlay
N/A (Man-made object)
Sandstone Concretion
Septarian or Carbonate-cemented Sandstone Concretion
Cobalt Blue Glass / Cullet Glass
Silicon dioxide (Amorphous man-made glass)
Mystic Topaz (Treated Quartz or Topaz)
Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating
Opalite
Synthetic Opalite Glass / Opalized Glass
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (SiO2) with metallic oxide impurities
Titanium Coated Kyanite (Aura Kyanite)
Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating
Boxwork or Septarian Concretion
Septarian nodule / Boxwork weathering
Sandstone (with concrete/human-made layer)
Clastic Sedimentary Rock (primarily Quartz/Feldspar grains)
Sea Glass
Man-made vitreous material
Crescent Pebble
Weathered Quartzite or Sandstone Fragment
Chert Concretion
Chert (Microcrystalline Quartz, SiO2)
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)
Magnetic Hematite (Man-made)
Iron Oxide (Fe2O3) with Barium-Strontium Ferrite
Asphalt concrete
Anthropogenic conglomerate
Sandstone Anvil / Nutting Stone
Quartzose Sandstone (Sedimentary Rock)
Man-made Carved Stone (Scream Mask/Skull motif)
Carved Soapstone or Serpentine-rich rock
Aura Quartz (Titanium Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti)