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

Blue Impression Jasper beads (Impression jasper (microcrystalline quartz/chalcedony), chiefly SiO₂, with iron-oxide and other mineral inclusions) — gemstone

Blue Impression Jasper beads

Impression jasper (microcrystalline quartz/chalcedony), chiefly SiO₂, with iron-oxide and other mineral inclusions

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 opal heart cabochon (Common opal, hydrated amorphous silica (SiO₂·nH₂O), likely blue-dyed or synthetic opalite) — gemstone

Blue opal heart cabochon

Common opal, hydrated amorphous silica (SiO₂·nH₂O), likely blue-dyed or synthetic opalite

Slag (Industrial Glass/Glassy Rock) (Anthropogenic Vitreous Material) — igneous

Slag (Industrial Glass/Glassy Rock)

Anthropogenic Vitreous Material

Sea Glass (White/Clear) (Amorphous Silica (Alkali-Lime-Silica Glass), SiO2 + Na2O + CaO) — Anthropogenic (Man-made product subject to geological processes)

Sea Glass (White/Clear)

Amorphous Silica (Alkali-Lime-Silica Glass), SiO2 + Na2O + CaO

Anthropogenic (Man-made product subject to geological processes)

Opalite (Synthetic Opalised Glass) — mineraloid (synthetic)

Opalite

Synthetic Opalised Glass

mineraloid (synthetic)

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)

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

Blue Obsidian

Volcanic Glass (SiO2 with inclusions)

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

Man-made Slag (Industrial Byproduct)

Anthropogenic Glassy Residue

not a natural rock

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

Cullet Glass (sometimes mistaken for Blue Obsidian or Slag) (Amorphous Silicon Dioxide (SiO2) with chemical additives (e.g., Cobalt for blue color)) — mineraloid / industrial byproduct

Cullet Glass (sometimes mistaken for Blue Obsidian or Slag)

Amorphous Silicon Dioxide (SiO2) with chemical additives (e.g., Cobalt for blue color)

mineraloid / industrial byproduct

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)

Unakite (Altered Granite (Epidotized Granite)) — metamorphic

Unakite

Altered Granite (Epidotized Granite)

Unakite (Altered Granite (Epidotized Granite)) — metamorphic

Unakite

Altered Granite (Epidotized Granite)

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

Engineered Quartz (Engineered Stone (primarily SiO2)) — metamorphic

Engineered Quartz

Engineered Stone (primarily SiO2)

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)

Blue Crackle Quartz (Dyed Quarzite) (Silicon Dioxide (SiO2) with artificial dye) — Metamorphic (modified)

Blue Crackle Quartz (Dyed Quarzite)

Silicon Dioxide (SiO2) with artificial dye

Metamorphic (modified)

Blue-green cabochon, likely chalcedony or treated glass imitation (Cryptocrystalline quartz (chalcedony/possibly chrysoprase); identification uncertain from image) — gemstone

Blue-green cabochon, likely chalcedony or treated glass imitation

Cryptocrystalline quartz (chalcedony/possibly chrysoprase); identification uncertain from image

Ferro-slag (Leland Blue/Slag Glass) (Anthropogenic Vitreous Silica (Industrial Slag)) — igneous

Ferro-slag (Leland Blue/Slag Glass)

Anthropogenic Vitreous Silica (Industrial Slag)

Copper Composite Turquoise (Purple and Blue) (Composite Hydrous copper aluminum phosphate with bronze/copper matrix binding) — gemstone

Copper Composite Turquoise (Purple and Blue)

Composite Hydrous copper aluminum phosphate with bronze/copper matrix binding

Tiger Iron (Composite rock (Quartz, Tiger's Eye, Hematite, and Jasper)) — metamorphic

Tiger Iron

Composite rock (Quartz, Tiger's Eye, Hematite, and Jasper)

Blue goldstone (Man-made aventurine glass containing metallic copper particles; not a natural mineral) — mineral

Blue goldstone

Man-made aventurine glass containing metallic copper particles; not a natural mineral

Cullet (Slag Glass) (Amorphous Silica (Industrial byproduct)) — mineraloid

Cullet (Slag Glass)

Amorphous Silica (Industrial byproduct)

Blue Goldstone (Synthetic Avanturine Glass (or Aventurine Glass)) — Synthetic Glass

Blue Goldstone

Synthetic Avanturine Glass (or Aventurine Glass)

Synthetic Glass

Pet Rock (Man-made Quartzite or Granite Cobble) (Silicon dioxide (SiO2) mixture; commonly composed of Quartz, Feldspar, and Mica) — igneous or metamorphic (base stone); anthropogenic (decoration)

Pet Rock (Man-made Quartzite or Granite Cobble)

Silicon dioxide (SiO2) mixture; commonly composed of Quartz, Feldspar, and Mica

igneous or metamorphic (base stone); anthropogenic (decoration)

Jasper and Chalcedony Composite (Silicon Dioxide (SiO2) microcrystalline quartz) — sedimentary

Jasper and Chalcedony Composite

Silicon Dioxide (SiO2) microcrystalline quartz

River Pebble (Granitic / Quartzite Pebble) (Quartz-Feldspar Aggregate (SiO2 / KAlSi3O8)) — igneous

River Pebble (Granitic / Quartzite Pebble)

Quartz-Feldspar Aggregate (SiO2 / KAlSi3O8)

Man-made Synthetic Material (Costume Faux Fur) (Synthetic Polymer (Polyester/Acrylic)) — not a rock

Man-made Synthetic Material (Costume Faux Fur)

Synthetic Polymer (Polyester/Acrylic)

Blue Sapphire (Synthetic or Man-made Glass Imitation) (Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic) — mineral

Blue Sapphire (Synthetic or Man-made Glass Imitation)

Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic

Green Agate (Silicon dioxide (SiO₂)) — mineral

Green Agate

Silicon dioxide (SiO₂)

Man-made Jewelry (Metal and Glass/Plastic) (Synthetic Alloy and Amorphous Solid (SiO2/Polymer)) — not a rock

Man-made Jewelry (Metal and Glass/Plastic)

Synthetic Alloy and Amorphous Solid (SiO2/Polymer)

Asphalt (Asphalt concrete (engineered material, not a naturally occurring rock/mineral in this form)) — Sedimentary

Asphalt

Asphalt concrete (engineered material, not a naturally occurring rock/mineral in this form)

Jasper and Mudstone Composite (Silicified Sedimentary Rock / Jasperoid Pebble) — sedimentary

Jasper and Mudstone Composite

Silicified Sedimentary Rock / Jasperoid Pebble

Graphite (Graphite (Native Carbon, C)) — metamorphic

Graphite

Graphite (Native Carbon, C)

Man-made Synthetic Material (Not a rock or mineral) (Polyester (Polyethylene terephthalate) / Faux Fur) — Synthetic / Textile

Man-made Synthetic Material (Not a rock or mineral)

Polyester (Polyethylene terephthalate) / Faux Fur

Synthetic / Textile

Engineered Quartz (Silicon dioxide composite) — manufactured stone

Engineered Quartz

Silicon dioxide composite

manufactured stone

Man-made Ceramic / Clay Figurine (Aluminosilicate Ceramic (Processed Clay)) — Synthetic (not a rock or mineral)

Man-made Ceramic / Clay Figurine

Aluminosilicate Ceramic (Processed Clay)

Synthetic (not a rock or mineral)

Buffalo Nickel (Indian Head Nickel) (Cupronickel (75% Copper, 25% Nickel)) — mineral (processed alloy)

Buffalo Nickel (Indian Head Nickel)

Cupronickel (75% Copper, 25% Nickel)

mineral (processed alloy)

Likely polished quartz or glass-like mineral cabochon (Probably quartz (SiO₂), though the image cannot exclude man-made glass) — mineral

Likely polished quartz or glass-like mineral cabochon

Probably quartz (SiO₂), though the image cannot exclude man-made glass

Jasper and Chalcedony Nodule (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Jasper and Chalcedony Nodule

Silicon Dioxide (SiO2) - Microcrystalline Quartz