Rock Identifier

Category

Mineral (Man Made Glass, Not Natural)

Browse mineral (man made glass, not natural) specimens identified by the Rock Identifier community.

Learn about Mineral (Man Made Glass, Not Natural) in the encyclopedia

Opalite

Goldstone

Obsidian

Black Obsidian

Macusanite

Baddeleyite

Blue Goldstone

Green Obsidian

Blue Obsidian

Midnight Obsidian

Maskelynite

Pink Obsidian

Weathered iron-rich concretion (probable limonite/goethite) (Limonite–goethite aggregate, approximately FeO(OH)·nH₂O) — mineral

Weathered iron-rich concretion (probable limonite/goethite)

Limonite–goethite aggregate, approximately FeO(OH)·nH₂O

Rose quartz heart (Quartz, silicon dioxide (SiO₂), pink variety) — mineral

Rose quartz heart

Quartz, silicon dioxide (SiO₂), pink variety

Chert (specifically Flint or Common Chert node) (Silicon Dioxide (SiO2)) — sedimentary

Chert (specifically Flint or Common Chert node)

Silicon Dioxide (SiO2)

Blue Agate Geode Slice (Silicon Dioxide (SiO2) - Chalcedony variety) — mineral

Blue Agate Geode Slice

Silicon Dioxide (SiO2) - Chalcedony variety

Parti Sapphire (Corundum (Al2O3)) — mineral

Parti Sapphire

Corundum (Al2O3)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Blue Sapphire (Corundum (Al2O3)) — mineral

Blue Sapphire

Corundum (Al2O3)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Diamond (Diamond (C)) — mineral

Diamond

Diamond (C)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Dyed Agate (Agate (Silicon dioxide)) — Mineral

Dyed Agate

Agate (Silicon dioxide)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Aura Quartz Geode (Titanium/Gold bonded Quartz (SiO2 with metallic coating)) — mineral

Aura Quartz Geode

Titanium/Gold bonded Quartz (SiO2 with metallic coating)

Tumbled Mixed Gemstones and Rocks (Various mineral species including quartz (SiO2) and silicate minerals) — mineral

Tumbled Mixed Gemstones and Rocks

Various mineral species including quartz (SiO2) and silicate minerals

Weathered iron-rich rock, likely limonite/goethite-bearing laterite (Limonite–goethite aggregate, commonly approximated as hydrated iron oxides (FeO(OH)·nH₂O)) — mineral

Weathered iron-rich rock, likely limonite/goethite-bearing laterite

Limonite–goethite aggregate, commonly approximated as hydrated iron oxides (FeO(OH)·nH₂O)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Sandstone (Arenite (Siliclastic sedimentary rock)) — sedimentary

Sandstone

Arenite (Siliclastic sedimentary rock)

Granite (Granite (Silicic Plutonic Rock)) — igneous

Granite

Granite (Silicic Plutonic Rock)

Sandstone (Sandstone (Quartz-rich sedimentary rock)) — sedimentary

Sandstone

Sandstone (Quartz-rich sedimentary rock)

Smoky Quartz Cluster (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz Cluster

Silicon Dioxide (SiO2)

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

Granite (Plutonic Granite) — igneous

Granite

Plutonic Granite

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Emerald (Beryl (Be3Al2(SiO3)6) with chromium/vanadium impurities) — mineral

Emerald

Beryl (Be3Al2(SiO3)6) with chromium/vanadium impurities

Fossil Shark Tooth (Carcharocles or Lamniformes (order)) — fossil

Fossil Shark Tooth

Carcharocles or Lamniformes (order)

Granite (Weathered River Rock) (Granite (Phaneritic Igneous Rock)) — igneous

Granite (Weathered River Rock)

Granite (Phaneritic Igneous Rock)

Porphyry (Porphyritic Andesite / Basaltic Porphyry) — igneous

Porphyry

Porphyritic Andesite / Basaltic Porphyry

Carved serpentine wing sculpture (Serpentine-group rock, chiefly antigorite/lizardite: Mg3Si2O5(OH)4) — metamorphic

Carved serpentine wing sculpture

Serpentine-group rock, chiefly antigorite/lizardite: Mg3Si2O5(OH)4

Sandstone (Sandstone (lithified arenite/wacke)) — Sedimentary Rock

Sandstone

Sandstone (lithified arenite/wacke)

Sedimentary Rock

Limonite (Ironstone) (Limonite (FeOO·nH2O)) — mineral

Limonite (Ironstone)

Limonite (FeOO·nH2O)

Aura Quartz Geode (Angel Aura Quartz) (Silicon Dioxide (SiO2) bonded with precious metals) — mineral

Aura Quartz Geode (Angel Aura Quartz)

Silicon Dioxide (SiO2) bonded with precious metals

Flint (Chert (a form of cryptocrystalline quartz, chemical formula SiO₂)) — Mineral

Flint

Chert (a form of cryptocrystalline quartz, chemical formula SiO₂)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Turquoise carving (Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O) — gemstone

Turquoise carving

Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O

Heat-Treated Amethyst (Commercial Citrine) (Silicon Dioxide (SiO2) - Macro-crystalline Quartz) — mineral

Heat-Treated Amethyst (Commercial Citrine)

Silicon Dioxide (SiO2) - Macro-crystalline Quartz

Limonite (Limonite (Hydrous iron oxides, predominantly Goethite FeO(OH)·nH2O)) — mineral

Limonite

Limonite (Hydrous iron oxides, predominantly Goethite FeO(OH)·nH2O)

Tumbled blue stone with a drilled hole (Likely dyed or naturally blue chalcedony/agate; identity cannot be confirmed from the photo) — mineral

Tumbled blue stone with a drilled hole

Likely dyed or naturally blue chalcedony/agate; identity cannot be confirmed from the photo

Peacock Ore (Treated Chalcopyrite) (Copper Iron Sulfide (CuFeS2) coated with oxides) — mineral

Peacock Ore (Treated Chalcopyrite)

Copper Iron Sulfide (CuFeS2) coated with oxides

Granite (Granite (Phaneritic igneous rock)) — igneous

Granite

Granite (Phaneritic igneous rock)