Opalite
Synthetic Opalite Glass
Category
Browse man made rock (technosol) specimens identified by the Rock Identifier community.
Opalite
Synthetic Opalite Glass
Sandstone (with Liesegang rings or joints)
Clastic Sedimentary Rock (primarily Quartz with Iron Oxide cement)
Pyrite in Quartz (Drill Core)
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions
Conglomerate
Conglomerate Rock (Paraconglomerate)
Moldavite
Tektite (Impact Glass), ~80% SiO2 + Al2O3
Sandstone Anvil / Nutting Stone
Quartzose Sandstone (Sedimentary Rock)
Polymer Clay (Mock Mineral)
Polyvinyl chloride (PVC) with plasticizers and pigment
Quartzite (Engineered Stone)
Silicon Dioxide (SiO2) based synthetic composite
Sea Glass
Man-made silicate glass
Opalite
Man-made opalescent 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)
Cobalt Blue Glass / Cullet Glass
Silicon dioxide (Amorphous man-made glass)
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Concrete
Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)
Mystic Topaz (Treated Quartz or Topaz)
Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating
Sandstone Concretion
Limonitic Sandstone Concretion
Opalite
Synthetic Opalite Glass / Opalized Glass
Concrete with Exposed Aggregate
Anthropogenic conglomerate (Concrete)
Opalite (Man-made Glass)
Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)
Pet Rock (Man-made Quartzite or Granite Cobble)
Silicon dioxide (SiO2) mixture; commonly composed of Quartz, Feldspar, and Mica
Sea Glass
Man-made vitreous material
Sea Glass
Man-made silicate glass
Slag
Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)
Asphalt (Bituminous Concrete)
Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)
Sandstone Concretion
Clastic sedimentary rock (primarily Quartz SiO2)
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Slag Glass
Vitreous Silicate Residue
Sandstone Concretion
Clastic Sedimentary Rock (primarily SiO2 with mineral cement)
Chert Concretion (with typical hematite/limonite staining)
Sedimentary Concretion (SiO2 with FeO(OH)⋅nH2O)
Crushed Stone (Likely Limestone or Granite)
Calcium Carbonate (CaCO3) for Limestone / Quartz and Feldspar for Granite
Chert Arrowhead (Projectile Point)
Microcrystalline Quartz (Chert or Flint)
Aura Quartz (Titanium Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti)
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)
Blue Obsidian (Cullet Glass)
Silicon Dioxide (Amorphous Glass)
Green Obsidian Sphere (man-made glass)
Vitreous Silica with Chromium/Iron additives