Rock Identifier

Category

Man Made Glass

Browse man made glass specimens identified by the Rock Identifier community.

Learn about Man Made Glass in the encyclopedia

Opalite

Goldstone

Blue Goldstone

Zincite

Mint Obsidian

Blue Obsidian

Green Obsidian

Crimson Obsidian

Cherry Obsidian

Violet Obsidian

Cobalt Blue Obsidian

Tangerine Obsidian

Quartz (Quartz (SiO₂)) — Mineral

Quartz

Quartz (SiO₂)

Indochinite Tektite (Tektite (high-silica impact glass)) — igneous

Indochinite Tektite

Tektite (high-silica impact glass)

Rhodonite (Rhodonite (MnSiO3)) — Mineral

Rhodonite

Rhodonite (MnSiO3)

Coquina / Fossiliferous Limestone (Fossiliferous Limestone (Calcite, CaCO3)) — sedimentary

Coquina / Fossiliferous Limestone

Fossiliferous Limestone (Calcite, CaCO3)

Swirled Agate Bead (Silicon Dioxide (SiO2)) — mineral

Swirled Agate Bead

Silicon Dioxide (SiO2)

Diamond (Cut Gemstone) (Natural Carbon (C)) — gemstone

Diamond (Cut Gemstone)

Natural Carbon (C)

Diamond (as set in a metal alloy ring) (Diamond (Pure Carbon, C)) — mineral

Diamond (as set in a metal alloy ring)

Diamond (Pure Carbon, C)

Granodiorite with Quartz Veining (Granodiorite (containing Plagioclase Feldspar, Quartz, and Biotite/Hornblende) with Quartz (SiO2) veins) — igneous

Granodiorite with Quartz Veining

Granodiorite (containing Plagioclase Feldspar, Quartz, and Biotite/Hornblende) with Quartz (SiO2) veins

Clear Quartz (or Rock Crystal) (Quartz (SiO₂)) — Mineral

Clear Quartz (or Rock Crystal)

Quartz (SiO₂)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Sandstone (likely a river or beach pebble) (Sandstone (a clastic sedimentary rock)) — Sedimentary Rock

Sandstone (likely a river or beach pebble)

Sandstone (a clastic sedimentary rock)

Sedimentary Rock

Pearl (Biogenic Mineraloid) (Calcium carbonate (Aragonite) and Conchiolin, CaCO3) — mineral

Pearl (Biogenic Mineraloid)

Calcium carbonate (Aragonite) and Conchiolin, CaCO3

Quartz (Silicon Dioxide (SiO2)) — Mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (SiO₂ (Silicon Dioxide)) — Mineral

Quartz

SiO₂ (Silicon Dioxide)

Turquoise (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]) — mineral

Turquoise

Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]

Quartz (Milky Quartz) (Quartz (SiO2 - Silicon Dioxide)) — Mineral

Quartz (Milky Quartz)

Quartz (SiO2 - Silicon Dioxide)

Quartz Vein in Host Rock (Crystalline Silicon Dioxide (SiO2) in Pelitic or Shaly Matrix) — metamorphic

Quartz Vein in Host Rock

Crystalline Silicon Dioxide (SiO2) in Pelitic or Shaly Matrix

Quartz (Quartz (Silicon Dioxide, SiO2)) — Mineral

Quartz

Quartz (Silicon Dioxide, SiO2)

Smoky Quartz (SiO2 (Silicon Dioxide)) — Mineral

Smoky Quartz

SiO2 (Silicon Dioxide)

Rough Diamond (Diamond (Pure Carbon: C)) — mineral

Rough Diamond

Diamond (Pure Carbon: C)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (River Pebble) (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite (River Pebble)

Metamorphosed Quartz Sandstone (SiO2)

Leopard Skin Jasper (Silicified Rhyolite or Orbicular Jasper (SiO2)) — sedimentary

Leopard Skin Jasper

Silicified Rhyolite or Orbicular Jasper (SiO2)

Quartz (likely milky quartz or a stained variety) (Silicon Dioxide (SiO₂)) — Mineral

Quartz (likely milky quartz or a stained variety)

Silicon Dioxide (SiO₂)

Sandstone (Quartz Arenite (a common type of sandstone, given the appearance), Arkose, Greywacke (depending on mineralogy)) — Sedimentary Rock

Sandstone

Quartz Arenite (a common type of sandstone, given the appearance), Arkose, Greywacke (depending on mineralogy)

Sedimentary Rock

Sandstone (Ferruginous) (Arenite (SiO2 with Fe2O3 inclusions)) — sedimentary

Sandstone (Ferruginous)

Arenite (SiO2 with Fe2O3 inclusions)

Diamond (Diamond (pure Carbon, C)) — mineral

Diamond

Diamond (pure Carbon, C)

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

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

Sandstone

Sandstone (lithified arenite/wacke)

Sedimentary Rock

Chert (or Flint) (Chert (cryptocrystalline quartz), SiO2) — Sedimentary

Chert (or Flint)

Chert (cryptocrystalline quartz), SiO2

Quartz (Quartz (Silicon Dioxide - SiO2)) — Mineral

Quartz

Quartz (Silicon Dioxide - SiO2)

Orange Quartz (Citrine Quartz) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Orange Quartz (Citrine Quartz)

Silicon Dioxide (SiO2) with iron impurities

Chert (Yellow Jasper/Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow Jasper/Flint)

Microcrystalline Quartz (SiO2)

Jasper (yellow/cream variety) (SiO₂ (Cryptocrystalline Quartz)) — Sedimentary

Jasper (yellow/cream variety)

SiO₂ (Cryptocrystalline Quartz)

Quartzite (Quartzite (primarily SiO2)) — Metamorphic

Quartzite

Quartzite (primarily SiO2)

Citrine Geode (or Druzy Citrine) (Silicon Dioxide (SiO₂) - a variety of Quartz) — Mineral

Citrine Geode (or Druzy Citrine)

Silicon Dioxide (SiO₂) - a variety of Quartz

Obsidian (Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)) — igneous

Obsidian

Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Agate (or Chalcedony) (SiO2 (Silicon Dioxide) - a cryptocrystalline variety of quartz) — Mineral

Agate (or Chalcedony)

SiO2 (Silicon Dioxide) - a cryptocrystalline variety of quartz

Sandstone (Pebble) (Arenite) — sedimentary

Sandstone (Pebble)

Arenite

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)