Rock Identifier

Category

Mineral (Man Made Composite)

Browse mineral (man made composite) specimens identified by the Rock Identifier community.

Learn about Mineral (Man Made Composite) in the encyclopedia

Opalite

Map Jasper

Goldstone

Glauconite

Blue Goldstone

Hutcheonite

Halite

Sperrylite

Sea Sediment Jasper

Baddeleyite

Anatase

Brookite

Vesicular basalt (probable iron-rich volcanic rock) (Basalt; chiefly plagioclase, clinopyroxene, olivine, and Fe-Ti oxides) — igneous

Vesicular basalt (probable iron-rich volcanic rock)

Basalt; chiefly plagioclase, clinopyroxene, olivine, and Fe-Ti oxides

Obsidian (likely black volcanic glass) (Obsidian; primarily amorphous volcanic silica glass, approximately SiO₂-rich rhyolitic composition) — igneous

Obsidian (likely black volcanic glass)

Obsidian; primarily amorphous volcanic silica glass, approximately SiO₂-rich rhyolitic composition

Likely clear quartz crystal or glass-like gemstone (Quartz, silicon dioxide (SiO₂); exact identification is uncertain from the strongly magenta-lit image) — mineral

Likely clear quartz crystal or glass-like gemstone

Quartz, silicon dioxide (SiO₂); exact identification is uncertain from the strongly magenta-lit image

Agate and millefiori glass jewelry (Agate: microcrystalline quartz (SiO₂); millefiori element appears to be man-made glass) — mineral

Agate and millefiori glass jewelry

Agate: microcrystalline quartz (SiO₂); millefiori element appears to be man-made glass

Ferruginous Conglomerate (or Iron-Rich Concrete/Slag) (Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)) — sedimentary

Ferruginous Conglomerate (or Iron-Rich Concrete/Slag)

Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)

Ferrous Slag (Iron/Steel Slag (Complex Calcium-Alumino-Silicates)) — Anthropgenic (Industrial Byproduct)

Ferrous Slag

Iron/Steel Slag (Complex Calcium-Alumino-Silicates)

Anthropgenic (Industrial Byproduct)

Smelter Slag (Anthropogenic Silicate Slag) — igneous

Smelter Slag

Anthropogenic Silicate Slag

Brick fragment (Man-made material) (N/A (Fired clay)) — man-made

Brick fragment (Man-made material)

N/A (Fired clay)

Carved Sea Turtle Figurine (Aventurine / Quartz / Jasper) (Quartz variety (SiO2) / Polycrystalline Quartz Aggregate) — mineral

Carved Sea Turtle Figurine (Aventurine / Quartz / Jasper)

Quartz variety (SiO2) / Polycrystalline Quartz Aggregate

Opalite (Synthetic Opalised Glass) — glass

Opalite

Synthetic Opalised Glass

Iron Slag (Iron/Steel Slag (Ferrosilicate Glass)) — industrial byproduct (anthropogenic material)

Iron Slag

Iron/Steel Slag (Ferrosilicate Glass)

industrial byproduct (anthropogenic material)

Red Sandstone or Brick Fragment (Arenite (if sandstone)) — sedimentary

Red Sandstone or Brick Fragment

Arenite (if sandstone)

Man-made Slag (Industrial Byproduct) (Anthropogenic Glassy Residue) — not a natural rock

Man-made Slag (Industrial Byproduct)

Anthropogenic Glassy Residue

not a natural rock

Green Slag (Anthropogenic Silicate Glass) — Mineraloid (Industrial byproduct)

Green Slag

Anthropogenic Silicate Glass

Mineraloid (Industrial byproduct)

Rainbow Hematite (Man-made/Treated) (Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)) — mineral

Rainbow Hematite (Man-made/Treated)

Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)

Cobalt Glass Slug (Cullet) (Man-made Silicate Glass with Cobalt Oxide (CoO)) — mineraloid

Cobalt Glass Slug (Cullet)

Man-made Silicate Glass with Cobalt Oxide (CoO)

Opalite-style pendant (likely synthetic glass, not natural opal) (Opalescent glass; commonly sold as “opalite” (not a recognized mineral species)) — gemstone

Opalite-style pendant (likely synthetic glass, not natural opal)

Opalescent glass; commonly sold as “opalite” (not a recognized mineral species)

Man-made Dyed Aura Quartz (Silicon Dioxide (SiO2) with metallic coating/dye) — mineral

Man-made Dyed Aura Quartz

Silicon Dioxide (SiO2) with metallic coating/dye

Slag Glass (Leland Blue variant) (Anthropogenic Vitreous Silicate) — mineral

Slag Glass (Leland Blue variant)

Anthropogenic Vitreous Silicate

Goldstone (Brown/Gold) (Aventurine Glass (Man-made glass with Copper inclusions)) — gemstone

Goldstone (Brown/Gold)

Aventurine Glass (Man-made glass with Copper inclusions)

Porcelain Tile (Sandstone-look) (Man-made Ceramic (resembling Quartz-rich Sandstone)) — sedimentary (imitation)

Porcelain Tile (Sandstone-look)

Man-made Ceramic (resembling Quartz-rich Sandstone)

sedimentary (imitation)

Goldstone (Aventurine Glass (Man-made glass with copper inclusions)) — mineraloid / man-made glass

Goldstone

Aventurine Glass (Man-made glass with copper inclusions)

mineraloid / man-made glass

Blue cabochon gemstone, likely synthetic glass or dyed stone (Indeterminate from image; possible glass, synthetic spinel, sodalite, or lapis lazuli) — gemstone

Blue cabochon gemstone, likely synthetic glass or dyed stone

Indeterminate from image; possible glass, synthetic spinel, sodalite, or lapis lazuli

Engineered Quartz Stone (Agglomerated Quartz (SiO2 + Polymer Resin)) — mineral-based composite

Engineered Quartz Stone

Agglomerated Quartz (SiO2 + Polymer Resin)

mineral-based composite

Goldstone (aventurine glass) (Man-made copper-bearing glass; not a natural mineral (commonly sold as blue/brown goldstone)) — mineral

Goldstone (aventurine glass)

Man-made copper-bearing glass; not a natural mineral (commonly sold as blue/brown goldstone)

Opalite (Synthetic Glass, SiO2 base with metallic inclusions) — mineraloid (synthetic)

Opalite

Synthetic Glass, SiO2 base with metallic inclusions

mineraloid (synthetic)

Man-made Crystal (Lead Glass) (Lead oxide-doped Silica Glass (approx. SiO2 + PbO)) — Mineraloid/Synthetic Material

Man-made Crystal (Lead Glass)

Lead oxide-doped Silica Glass (approx. SiO2 + PbO)

Mineraloid/Synthetic Material

Crescent Pebble (Weathered Quartzite or Sandstone Fragment) — sedimentary

Crescent Pebble

Weathered Quartzite or Sandstone Fragment

Goldstone (brown goldstone) (Man-made aventurine glass, typically copper-bearing silica glass) — gemstone

Goldstone (brown goldstone)

Man-made aventurine glass, typically copper-bearing silica glass

Tumbled black obsidian (likely) (Volcanic glass; chiefly silica-rich rhyolitic glass (SiO₂)) — igneous

Tumbled black obsidian (likely)

Volcanic glass; chiefly silica-rich rhyolitic glass (SiO₂)

Obsidian (Blue) (Volcanic Glass (SiO2)) — igneous

Obsidian (Blue)

Volcanic Glass (SiO2)

Pink Cubic Zirconia (CZ) (Zirconium Dioxide (ZrO2)) — mineral (synthetic)

Pink Cubic Zirconia (CZ)

Zirconium Dioxide (ZrO2)

mineral (synthetic)

Opalite (Synthetic glass (SiO2 + metal additions)) — mineraloid

Opalite

Synthetic glass (SiO2 + metal additions)

Opalite (Synthetic Opalised Glass) — Mineral (Synthetic / Man-made)

Opalite

Synthetic Opalised Glass

Mineral (Synthetic / Man-made)

Green Glass (often marketed as 'Obsidian' or 'Green Quartz') (Amorphous Silica (SiO2) with copper or chromium additives) — Mineraloid (Man-made)

Green Glass (often marketed as 'Obsidian' or 'Green Quartz')

Amorphous Silica (SiO2) with copper or chromium additives

Mineraloid (Man-made)

Diamond / Clear Quartz / Glass paste (Carbon (Diamond) / Silicon Dioxide (Quartz)) — gemstone

Diamond / Clear Quartz / Glass paste

Carbon (Diamond) / Silicon Dioxide (Quartz)

Opalite (Synthetic Glass (Simulated Moonstone/Opal)) — gemstone

Opalite

Synthetic Glass (Simulated Moonstone/Opal)

Goldstone (Aventurine glass (Synthetic glass with copper inclusions)) — mineraloid / man-made glass

Goldstone

Aventurine glass (Synthetic glass with copper inclusions)

mineraloid / man-made glass

Vesicular basalt (weathered scoria) (Scoriaceous basalt; chiefly plagioclase, clinopyroxene, olivine, and iron-titanium oxides) — igneous

Vesicular basalt (weathered scoria)

Scoriaceous basalt; chiefly plagioclase, clinopyroxene, olivine, and iron-titanium oxides

Libyan Desert Glass (Impact-melt silica glass (SiO2 + traces of Al, Fe, Ti)) — mineral (Tektite/Impactite)

Libyan Desert Glass

Impact-melt silica glass (SiO2 + traces of Al, Fe, Ti)

mineral (Tektite/Impactite)

Blue Goldstone (Aventurine Glass) — Man-made glass (often grouped with minerals in lapidary)

Blue Goldstone

Aventurine Glass

Man-made glass (often grouped with minerals in lapidary)

Dyed Crackle Quartz (Silicon Dioxide (SiO2) with synthetic dye) — mineral

Dyed Crackle Quartz

Silicon Dioxide (SiO2) with synthetic dye