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

Tumbled milky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Tumbled milky quartz

Quartz (silicon dioxide, SiO₂)

Snowflake Obsidian (Obsidian with Cristobalite inclusions (70-75% SiO2)) — igneous

Snowflake Obsidian

Obsidian with Cristobalite inclusions (70-75% SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Nephrite Jade (Ca2(Mg, Fe)5Si8O22(OH)2) — metamorphic

Nephrite Jade

Ca2(Mg, Fe)5Si8O22(OH)2

Chert (Green Chert or Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Green Chert or Jasper)

Microcrystalline Quartz (SiO2)

Quartzite pebble (Quartzite (SiO2)) — metamorphic

Quartzite pebble

Quartzite (SiO2)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Dyed Quartzite (Tumbled Metamorphosed Quartz (SiO2) with artificial pigment) — metamorphic

Dyed Quartzite

Tumbled Metamorphosed Quartz (SiO2) with artificial pigment

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

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Chert (often called Flint or Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (often called Flint or Jasper)

Microcrystalline Quartz (SiO2)

Flint (or Chert with cortex) (Silicon dioxide (SiO2)) — sedimentary

Flint (or Chert with cortex)

Silicon dioxide (SiO2)

Diamond jewelry (Diamond (crystalline carbon, C)) — gemstone

Diamond jewelry

Diamond (crystalline carbon, C)

Granite (Granite (composed primarily of Quartz, Feldspar, and Mica)) — igneous

Granite

Granite (composed primarily of Quartz, Feldspar, and Mica)

Sea Glass (Frosted Glass) (Amorphous Silica (SiO2) with various metal oxide impurities) — Man-made material (Anthro-lithic product)

Sea Glass (Frosted Glass)

Amorphous Silica (SiO2) with various metal oxide impurities

Man-made material (Anthro-lithic product)

Blue Quartz (Dumortierite Quartz) (SiO2 with inclusions of AlAl6BSi3O18) — mineral

Blue Quartz (Dumortierite Quartz)

SiO2 with inclusions of AlAl6BSi3O18

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

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Smoky Quartz (Tumbled)

Silicon Dioxide (SiO2)

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

Amethyst

SiO2 (Silicon Dioxide with iron impurities)

Diamond (Cubic Carbon (C)) — mineral

Diamond

Cubic Carbon (C)

Amber (and Citrine Quartz) (Succinite (Amber) and Silicon Dioxide (SiO2)) — Organic Mineraloid and Mineral

Amber (and Citrine Quartz)

Succinite (Amber) and Silicon Dioxide (SiO2)

Organic Mineraloid and Mineral

Chert (Vuggy or Weathered) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Vuggy or Weathered)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Quartz crystal pendant (Quartz (silicon dioxide, SiO₂), likely rock crystal or milky quartz) — mineral

Quartz crystal pendant

Quartz (silicon dioxide, SiO₂), likely rock crystal or milky quartz

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

River Cobble (likely Metasedimentary) (Metasedimentary Rock / Quartz-rich Sandstone) — metamorphic

River Cobble (likely Metasedimentary)

Metasedimentary Rock / Quartz-rich Sandstone

Smoky Quartz (Silicon Dioxide (SiO2) with aluminum impurities and natural radiation) — mineral

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities and natural radiation

Lapis Lazuli (Lapis Lazuli (a rock, not a single mineral; primary mineral is Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2) — Metamorphic rock

Lapis Lazuli

Lapis Lazuli (a rock, not a single mineral; primary mineral is Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2

Metamorphic rock

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Sandstone Pebble (Arenite (Sandstone)) — sedimentary

Sandstone Pebble

Arenite (Sandstone)

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

Clear Quartz Crystal

Silicon Dioxide (SiO2)

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

Lepidolite

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

Apache Tear (Hydrated Obsidian (Natural Volcanic Glass)) — igneous

Apache Tear

Hydrated Obsidian (Natural Volcanic Glass)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Colorless faceted gemstone (most likely synthetic cubic zirconia) (Cubic zirconia, ZrO₂ (likely synthetic); natural alternatives include quartz or diamond) — gemstone

Colorless faceted gemstone (most likely synthetic cubic zirconia)

Cubic zirconia, ZrO₂ (likely synthetic); natural alternatives include quartz or diamond

Citrine (Citrine (Silicon Dioxide, SiO2)) — mineral

Citrine

Citrine (Silicon Dioxide, SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Granite (Granite (plutonic igneous rock)) — igneous

Granite

Granite (plutonic igneous rock)

Ruby and Diamond Heart Pendant (Corundum (Al2O3) and Diamond (C)) — mineral

Ruby and Diamond Heart Pendant

Corundum (Al2O3) and Diamond (C)

Chert (Flint) (Chert (Cryptocrystalline Silica, SiO2)) — sedimentary

Chert (Flint)

Chert (Cryptocrystalline Silica, SiO2)

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

Smoky Quartz (with Hematite inclusions)

Silicon Dioxide (SiO2)

Quartzite (Quartz Vein) (SiO2 (Silicon Dioxide)) — metamorphic

Quartzite (Quartz Vein)

SiO2 (Silicon Dioxide)