Rock Identifier

Category

Mineral (Man Made Glass)

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

Orthoclase Feldspar (KAlSi3O8 (Potassium Aluminum Silicate)) — mineral

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Iron-Stained Quartz (Riverside Cobble) (Silicon Dioxide (SiO2) with Limonite/Hematite inclusions) — mineral

Iron-Stained Quartz (Riverside Cobble)

Silicon Dioxide (SiO2) with Limonite/Hematite inclusions

Potassium Feldspar (Orthoclase) (KAlSi3O8) — mineral

Potassium Feldspar (Orthoclase)

KAlSi3O8

White Quartz Pebble (with possible Quartz Geode cavity) (Silicon Dioxide (SiO2)) — mineral

White Quartz Pebble (with possible Quartz Geode cavity)

Silicon Dioxide (SiO2)

Sandstone (Arenite (composed mainly of SiO2)) — sedimentary

Sandstone

Arenite (composed mainly of SiO2)

Milky Quartz with Iron Inclusions (Silicon Dioxide (SiO2)) — mineral

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Chakra Tumbled Stone Set (Various (including Amethyst [SiO2], Sodalite [Na8(Al6Si6O24)Cl2], Green Aventurine [SiO2], Red Jasper [SiO2], etc.)) — Mineral

Chakra Tumbled Stone Set

Various (including Amethyst [SiO2], Sodalite [Na8(Al6Si6O24)Cl2], Green Aventurine [SiO2], Red Jasper [SiO2], etc.)

Quartzite (Quartzite (Primary mineral: SiO2)) — metamorphic

Quartzite

Quartzite (Primary mineral: SiO2)

Quartz (Iron-stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Pink Feldspar (Orthoclase (KAlSi3O8) or Microcline) — mineral

Pink Feldspar

Orthoclase (KAlSi3O8) or Microcline

Quartz / Quartzite (Silicon Dioxide (SiO2)) — mineral / metamorphic

Quartz / Quartzite

Silicon Dioxide (SiO2)

mineral / metamorphic

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Quartz Druzy Geode Fragment (Silicon Dioxide (SiO2)) — mineral

Quartz Druzy Geode Fragment

Silicon Dioxide (SiO2)

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

Amethyst (Rough Quartz)

Silicon Dioxide (SiO2 with Iron impurities)

Pink Lepidolite (Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)) — mineral

Pink Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Milky Quartz (Quartz Vein) (Silicon Dioxide (SiO2)) — mineral

Milky Quartz (Quartz Vein)

Silicon Dioxide (SiO2)

Red Sandstone (Arenite (with Iron Oxide pigmentation)) — Sedimentary

Red Sandstone

Arenite (with Iron Oxide pigmentation)

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

Smoky Quartz

Smoky Quartz (Silicon Dioxide, SiO2)

Obsidian (Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)) — Igneous

Obsidian

Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

White Quartz Pebble (Quartz (Silicon Dioxide, SiO2)) — mineral

White Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Obsidian (Obsidian (Volcanic Glass, SiO2 + impurities)) — igneous

Obsidian

Obsidian (Volcanic Glass, SiO2 + impurities)

Sandstone (specifically Lithic or Quartz Arenite) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (specifically Lithic or Quartz Arenite)

Arenite (composed primarily of SiO2)

Tiffany Stone (Fluorite Opal (a complex mix of Fluorite, Opal, Calcite, Dolomite, Quartz, and Bertrandite)) — mineral

Tiffany Stone

Fluorite Opal (a complex mix of Fluorite, Opal, Calcite, Dolomite, Quartz, and Bertrandite)

Sandstone (Arenite (SiO2 principal component)) — sedimentary

Sandstone

Arenite (SiO2 principal component)

River Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

River Quartz

Quartz (Silicon Dioxide, SiO2)

Chert (Cherty Limestone / Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Cherty Limestone / Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Tektite (Indochinite) (Tektite (Natural Glass, SiO2 + Al2O3)) — mineral

Tektite (Indochinite)

Tektite (Natural Glass, SiO2 + Al2O3)

Tektite (Indochinite) (Tektite (natural glass, SiO2 + Al2O3)) — mineral

Tektite (Indochinite)

Tektite (natural glass, SiO2 + Al2O3)

Quartzite (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Quartzite with Dark Mineral Inclusions (Quartzite (primarily SiO2) with accessory minerals) — metamorphic

Quartzite with Dark Mineral Inclusions

Quartzite (primarily SiO2) with accessory minerals

Mixed Quartz and Jasper Pebbles (Silicon Dioxide (SiO2)) — Mineral

Mixed Quartz and Jasper Pebbles

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)