Man-made Jewelry (Metal and Glass/Plastic)
Synthetic Alloy and Amorphous Solid (SiO2/Polymer)
Category
Browse man made byproduct (non geological) specimens identified by the Rock Identifier community.
Man-made Jewelry (Metal and Glass/Plastic)
Synthetic Alloy and Amorphous Solid (SiO2/Polymer)
Iron Slag
Iron/Steel Slag (Ferrosilicate Glass)
Mother of Pearl (Nacre)
Aragonite (CaCO3) with Organic Matrix
Not a geological specimen
N/A (man-made object)
Opalite (Man-made Glass)
Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)
Opalite (a synthetic glass)
Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant
Opalite
Man-made Synthetic Glass (Silicon Dioxide with metal additives)
Quartz (Engineered Stone Countertop)
Silicon Dioxide (SiO2) with polymer resins
Metal Chain Belt with Square Plates
Not applicable (man-made)
Green glass sphere/marble
Soda-lime glass (primarily SiO2, Na2O, CaO)
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Opalite
Synthetic Opalised Glass
Green Slag Glass
Amorphous Silica / Glassy Blast Furnace Slag
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2
Quartz (Engineered Quartz Surface)
Silicon Dioxide (SiO2) based composite
Quartz pebble (Quartztite fragment)
Silicon Dioxide (SiO2)
Opalite (Synthetic Moonstone/Opal)
Synthetic Silica Glass
Ring with an Orange Inlay
N/A (Man-made object)
Green Slag Glass
Cullet (Amorphous Silicon Dioxide with impurities)
Opalite
Synthetic Opalised Glass
Bouncy Ball (Synthetic Rubber Polymer)
Polybutadiene / Ethylene Vinyl Acetate (EVA)
Terracotta (Man-made ceramic brick fragment)
Baked clay / High-iron ceramic (Silicate-based ceramic)
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Hematite
Iron(III) oxide (Fe2O3)
Red Slag Glass (Cullet)
Amorphous Silicon Dioxide (SiO2) with metallic dopants
Exposed Aggregate Concrete (Pea Gravel)
Concrete with Siliceous Alluvial Gravels
Titanium Aura Quartz (Bismuth-coated Druzy)
Silicon Dioxide (SiO2) with Titanium/Metal vapor coating
Opalite
Synthetically produced glass (Silicon Dioxide with metallic inclusions)
Moldavite
Tektite (Impact Glass), ~80% SiO2 + Al2O3
Ferrous Slag (Iron Smelting By-product)
Fused Siliceous Slag
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Unidentifiable Rock Fragment
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Conglomerate
Conglomerate (Sedimentary rock containing rounded clasts)
Glass
Amorphous Silicon Dioxide (SiO2)
Concretion (Sandstone)
Carbonate-cemented Sandstone Concretion
Sea Glass (White/Clear)
Amorphous Silica (Alkali-Lime-Silica Glass), SiO2 + Na2O + CaO
Cultured Marble (Synthetic)
Polymer-matrix composite (typically calcium carbonate in polyester resin)
Cullet Glass (Strawberry Glass)
Amorphous Silicon Dioxide (SiO2) with metallic dopants
Lava Rock with Fabric Impression
Scoria or Basalt with anthropogenic impressions
Concrete Rubble with Aggregate
Hardened Portland Cement Paste with Coarse Aggregate
Metal Chain (Likely Steel or a Steel Alloy)
Steel (primarily iron and carbon); specific alloy unknown