ABS Plastic (Acrylonitrile Butadiene Styrene)
(C8H8)x·(C4H6)y·(C3H3N)z
Category
Browse anthropogenic (man made industrial byproduct) specimens identified by the Rock Identifier community.
ABS Plastic (Acrylonitrile Butadiene Styrene)
(C8H8)x·(C4H6)y·(C3H3N)z
Opalite (Man-made Glass)
Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)
Weathered iron-rich concretion or ironstone nodule
Goethite–hematite limonite concretion (FeO(OH), Fe₂O₃, and hydrated iron oxides)
Opalite (Man-made Glass)
Synthetic Opalised Glass
Cubic Zirconia (Diamond Simulant)
Zirconium Dioxide (ZrO2)
Diamond / Clear Quartz / Glass paste
Carbon (Diamond) / Silicon Dioxide (Quartz)
Opalite
Synthetic Fluorescent Glass (SiO2 + impurities)
Polished brown jasper (likely brecciated or orbicular jasper)
Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions
Not a geological specimen
N/A (man-made object)
Man-made Jewelry (Metal and Glass/Plastic)
Synthetic Alloy and Amorphous Solid (SiO2/Polymer)
Eroded Brick or Pumice-like Scoria
Vesicular Basalt / Scoria (Anthropogenic variant: Eroded Firebrick)
Rose Quartz and Cherry Quartz (Dyed Glass/Quartz)
Silicon Dioxide (SiO2) with inclusions/dye
Opalite
Synthetic glass / Opaque silicious glass
Not a rock, mineral, or geological specimen
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
Quartzite (Engineered Stone)
Silicon Dioxide (SiO2) based synthetic composite
Blue Sea Glass
Amorphous Silica (Anthropogenic glass)
Fired Clay Brick (Anthropic Rock substitute)
Anthropogenic polycrystalline ceramic (predominantly Mullite and Quartz: Al6Si2O13 + SiO2)
Slag Glass
Silicon dioxide with impurities
Opalite
Synthetic Glass (Simulated Moonstone/Opal)
Opalite
Man-made opalescent glass (SiO2 + metal oxides)
Slag (Industrial By-product)
Glassy silicate or metallic smelting residue
Slag Glass
Amorphous Silica / Glass Slag
Porcelain Tile (Sandstone-look)
Man-made Ceramic (resembling Quartz-rich Sandstone)
Cubic Zirconia (Simulated Diamond)
Cubic Zirconia (ZrO2)
Sea Glass
Silicon dioxide (mostly)
N/A - Image does not contain a rock or mineral
Anthropogenic textile material
Terrazzo (Synthetic Composite Rock)
Cementitious or Epoxy Resin-bound Aggregates
Concrete with Aggregate
Composite construction material; primary matrix is Calcium Silicate Hydrate (C-S-H)
Carborundum
Silicon Carbide (SiC)
Carborundum (Silicon Carbide)
Silicon Carbide (SiC) / Moissanite (natural form)
Green Glass (often marketed as 'Obsidian' or 'Green Quartz')
Amorphous Silica (SiO2) with copper or chromium additives
Green glass sphere/marble
Soda-lime glass (primarily SiO2, Na2O, CaO)
Efflorescence (on Clay Brick)
Crystalline salt deposits (typically Sodium Sulfate Na2SO4, Calcium Carbonate CaCO3, or Potassium Sulfate K2SO4)
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Ferrochrome Slag
Calcium-Aluminium-Magnesium Silicate Slag
Exposed Aggregate Concrete (Pea Gravel)
Concrete with Siliceous Alluvial Gravels
Chert (Arrowheads)
Microcrystalline Quartz (SiO2)
Titanium Coated Kyanite (Aura Kyanite)
Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating
Sea Glass
Man-made silicate glass
Opalite
Man-made opalescent glass
Goldstone
Aventurine Glass (Man-made)