Sandstone (likely Quartzose Sandstone)
Arenite
sedimentary
Category
Man Made Material, Not A Natural Rock Or Mineral Specimen
Browse man made material, not a natural rock or mineral specimen specimens identified by the Rock Identifier community.
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Sea Glass
Man-made vitreous material (silica-based glass)
mineral
Man-made Glass (Tumbled/Shaped)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Mineraloid (synthetic)
Asphalt (Bituminous Concrete)
Bituminous Concrete / Pavement
man-made (synthetic rock)
Sandstone (with man-made markings)
Arenite (composed primarily of Quartz, SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite (SiO2 with Fe2O3 inclusions)
sedimentary
Fired Clay Brick (Anthropic Rock substitute)
Anthropogenic polycrystalline ceramic (predominantly Mullite and Quartz: Al6Si2O13 + SiO2)
metamorphic (man-made / anthropic)
Chert (Honey Chert / Flint)
Silicon Dioxide (SiO2)
sedimentary
Dyed Dragon Vein Agate
Silicon Dioxide (SiO2) with artificial pigment
mineral
Rainbow Hematite (Man-made/Treated)
Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)
mineral
Corundum (Pink Sapphire / Ruby)
Al2O3 (Aluminum Oxide)
mineral
Opalite
Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)
mineral
Goldstone (Brown)
Aventurine Glass (Silicon Dioxide infused with Copper crystals)
mineraloid (man-made glass)
Dyed Blue Agate (Dragon Vein Agate)
Silicon Dioxide (SiO2) with artificial cobalt/organic dyes
mineral
Pink Tumbled Quartz (Dyed)
Silicon Dioxide (SiO2)
mineral
Goldstone (Brown/Gold variety)
Aventurine Glass (SiO2 with Copper inclusions)
Synthetic/Man-made glass (often mistaken for a mineral)
Sandstone
Clastic sedimentary rock (Quartz arenite/Arkose)
sedimentary
Tumbled milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Tektite
Impactite (Natural Silicate Glass)
meteorite
Goldstone (blue-goldstone–style glass) beads
Artificial aventurine glass, typically silica glass with copper inclusions; not a natural mineral
mineral
Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral
Aura Quartz
Titanium/Titanium-Gold treated Silicon Dioxide (SiO2)
mineral
Opalite
Synthetic opalescent glass
glass
Libyan Desert Glass
Impact-melt silica glass (SiO2 + traces of Al, Fe, Ti)
mineral (Tektite/Impactite)
Painted Sandstone
Sandstone (clastic sedimentary rock) with acrylic/artistic coating
sedimentary
Blue Goldstone
Synthetic glass with cobalt and copper inclusions
man-made glass
Concretion (Sandstone)
Carbonate-cemented Sandstone Concretion
sedimentary
Aura Rose Quartz
SiO2 (Silicon Dioxide with Titanium/Gold coating)
mineral
Chalcanthite (Likely Synthetic/Lab-Grown)
Hydrated copper(II) sulfate (CuSO4·5H2O)
mineral
Man-made Dyed Aura Quartz
Silicon Dioxide (SiO2) with metallic coating/dye
mineral
Opalite
Man-made opalescent glass (SiO2 + metal oxides)
mineral (synthetic)
Gold (Elemental Metal)
Gold (Au)
Mineral
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Opalite
Synthetic Glass, SiO2 base with metallic inclusions
mineraloid (synthetic)
Goldstone
Aventurine glass
mineral (man-made glass)
Obsidian (Blue)
Volcanic Glass (SiO2)
igneous
Pink Quartz / Sea Glass
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (with iron oxide cement)
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Bouncy Ball (Synthetic Rubber Polymer)
Polybutadiene / Ethylene Vinyl Acetate (EVA)
Synthetic material (Not a rock or mineral)
Turquoise
Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O
mineral
Sea Glass
Silicon dioxide (mostly)
mineral