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

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Sandstone (with Iron Staining) (Clastic sedimentary rock (primarily Quartz - SiO2)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily Quartz - SiO2)

Tumbled smoky quartz (Quartz (SiO₂), smoky variety) — mineral

Tumbled smoky quartz

Quartz (SiO₂), smoky variety

Amethyst with Quartz Vein (SiO2 (Silicon Dioxide)) — mineral

Amethyst with Quartz Vein

SiO2 (Silicon Dioxide)

Smoky Quartz (Smoky Quartz (SiO2)) — mineral

Smoky Quartz

Smoky Quartz (SiO2)

Blue Topaz (Aluminum silicate fluoride hydroxide (Al2SiO4(F, OH)2)) — mineral

Blue Topaz

Aluminum silicate fluoride hydroxide (Al2SiO4(F, OH)2)

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Flower Agate (Chalcedony (SiO2) with inclusions) — mineral

Flower Agate

Chalcedony (SiO2) with inclusions

Onyx (Black) and Mother of Pearl Inlay (Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl) — mineral

Onyx (Black) and Mother of Pearl Inlay

Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl

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

Amethyst

SiO2 (Silicon Dioxide with iron impurities)

Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

Chert (Flint) (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert (Flint)

Chert (Microcrystalline Quartz, SiO2)

Peach Moonstone (Orange/Peach Feldspar) (Potassium aluminum silicate (KAlSi3O8)) — mineral

Peach Moonstone (Orange/Peach Feldspar)

Potassium aluminum silicate (KAlSi3O8)

Herkimer Diamond (Quartz) (Silicon Dioxide (SiO2)) — mineral

Herkimer Diamond (Quartz)

Silicon Dioxide (SiO2)

Ruby (Raw Corundum) (Corundum (Al2O3) with Chromium traces) — mineral

Ruby (Raw Corundum)

Corundum (Al2O3) with Chromium traces

Red Sandstone (Arenite (Iron-rich)) — sedimentary

Red Sandstone

Arenite (Iron-rich)

Diamond (Set in jewelry) (Cubic Carbon (C)) — mineral

Diamond (Set in jewelry)

Cubic Carbon (C)

Green Druzy Quartz (Prasiolite) (Silicon Dioxide (SiO2) with inclusions (typically Chlorite or Actinolite)) — mineral

Green Druzy Quartz (Prasiolite)

Silicon Dioxide (SiO2) with inclusions (typically Chlorite or Actinolite)

Yellow Ochre (Goethite-rich clay (Hydrated Iron Oxide: FeO(OH)·nH₂O)) — mineral

Yellow Ochre

Goethite-rich clay (Hydrated Iron Oxide: FeO(OH)·nH₂O)

Clear Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Orange Quartz (Silicon Dioxide (SiO2) with Hematite inclusions) — mineral

Orange Quartz

Silicon Dioxide (SiO2) with Hematite inclusions

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartzite (Metamorphosed Quartz Sandstone) — metamorphic

Quartzite

Metamorphosed Quartz Sandstone

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

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Sandstone (with potential Arkose/Lithic characteristics) (Arenite (Sedimentary rock composed of sand-sized grains)) — sedimentary

Sandstone (with potential Arkose/Lithic characteristics)

Arenite (Sedimentary rock composed of sand-sized grains)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Red Chert (Jasper) (Cryptocrystalline Quartz (SiO2) with iron oxide inclusions) — sedimentary

Red Chert (Jasper)

Cryptocrystalline Quartz (SiO2) with iron oxide inclusions

Tektite (Indochinite) (Tektite (High-silica natural glass)) — meteorite

Tektite (Indochinite)

Tektite (High-silica natural glass)

Yellow Quartz (Citrine/Yellow Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine/Yellow Chalcedony)

Silicon Dioxide (SiO2)

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

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

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Yellow Quartz (Citrine Quartz Pebble) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine Quartz Pebble)

Silicon Dioxide (SiO2)

Sandstone (Arenite (principally SiO2)) — sedimentary

Sandstone

Arenite (principally SiO2)

Gold-bearing quartz vein specimen (Native gold (Au) in quartz (SiO₂), likely with iron-oxide staining) — mineral

Gold-bearing quartz vein specimen

Native gold (Au) in quartz (SiO₂), likely with iron-oxide staining

Granodiorite (Intrusive Igneous Rock) — igneous

Granodiorite

Intrusive Igneous Rock

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

Quartz Crystal (Smoky Quartz)

Silicon Dioxide (SiO2)

Chert (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert

Chert (Microcrystalline Quartz, SiO2)

Chert (varietal Flint) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (varietal Flint)

Microcrystalline quartz (SiO2)

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

Amethyst

SiO2 (Silicon Dioxide with Iron impurities)

Pink Granite (Phaneritic intrusive igneous rock (high Potassium-Feldspar)) — igneous

Pink Granite

Phaneritic intrusive igneous rock (high Potassium-Feldspar)