Rock Identifier

Category

Synthetic Glass (Often Categorized As A Simulated Mineral)

Browse synthetic glass (often categorized as a simulated mineral) specimens identified by the Rock Identifier community.

Learn about Synthetic Glass (Often Categorized As A Simulated Mineral) in the encyclopedia

Opalite

Sideromelane

Pele's Tears

Porphyritic Obsidian

Porphyritic Obsidian

Anatase

Red Obsidian

Euxenite

Gray Obsidian

Gold Sheen Obsidian

Pink Lady Obsidian

Zircon

Aventurine

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

Quartz (Smoky Quartz)

Silicon Dioxide (SiO2)

Quartzite (with mineral vein) (Metamorphosed Quartz-rich Sandstone (SiO2)) — metamorphic

Quartzite (with mineral vein)

Metamorphosed Quartz-rich Sandstone (SiO2)

Quartz Vein in Granite (Crystalline Silicon Dioxide (SiO2) in Granitic Matrix) — mineral/igneous

Quartz Vein in Granite

Crystalline Silicon Dioxide (SiO2) in Granitic Matrix

mineral/igneous

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Greenschist / Greenstone (Greenschist facies metabasite) — metamorphic

Greenschist / Greenstone

Greenschist facies metabasite

Quartz Vein with Iron Staining (Silicon Dioxide (SiO2)) — mineral

Quartz Vein with Iron Staining

Silicon Dioxide (SiO2)

Sandstone (Arenite (primarily SiO2 with various cementing agents)) — sedimentary

Sandstone

Arenite (primarily SiO2 with various cementing agents)

Quartz Pebble (Silicon Dioxide (SiO2)) — Mineral / Sedimentary occurrence

Quartz Pebble

Silicon Dioxide (SiO2)

Mineral / Sedimentary occurrence

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

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

Chert (Flint variety)

Microcrystalline Quartz (SiO2)

Quartz Pebble (with probable iron staining) (Silicon dioxide (SiO2)) — mineral

Quartz Pebble (with probable iron staining)

Silicon dioxide (SiO2)

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

Yellow Quartz Pebble

Silicon Dioxide (SiO2)

Jasper and Quartz Pebble (Silicon dioxide (SiO2) microcrystalline quartz variety) — sedimentary

Jasper and Quartz Pebble

Silicon dioxide (SiO2) microcrystalline quartz variety

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz (Common or Milky) (Silicon Dioxide (SiO2)) — mineral

Quartz (Common or Milky)

Silicon Dioxide (SiO2)

Chert (Serpentinized) (Silicon Dioxide (SiO2) with mineral staining) — sedimentary

Chert (Serpentinized)

Silicon Dioxide (SiO2) with mineral staining

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Jasper / Chert (Red) (Cryptocrystalline quartz (SiO2)) — Sedimentary / Mineral

Jasper / Chert (Red)

Cryptocrystalline quartz (SiO2)

Sedimentary / Mineral

Milky Quartz with Iron Staining (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz with Iron Staining

Quartz (Silicon Dioxide, SiO2)

Red Sandstone (with possible iron oxide staining) (Sandstone (primarily Quartz with Hematite/Goethite cement)) — sedimentary

Red Sandstone (with possible iron oxide staining)

Sandstone (primarily Quartz with Hematite/Goethite cement)

Possible tektite or dark volcanic rock fragment (Uncertain; likely natural silicate glass (tektite) or basalt) — mineral

Possible tektite or dark volcanic rock fragment

Uncertain; likely natural silicate glass (tektite) or basalt

Chert (Jasper) (Microcrystalline Quartz (SiO2) with Iron Oxide impurities) — sedimentary

Chert (Jasper)

Microcrystalline Quartz (SiO2) with Iron Oxide impurities

Quartzite Pebble (Iron-stained Quartz) (Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions) — metamorphic

Quartzite Pebble (Iron-stained Quartz)

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Sandstone (with Iron Staining) (Clastic sedimentary rock (primarily Quartz with Limonite/Goethite staining)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily Quartz with Limonite/Goethite staining)

Yellow Quartz (Golden Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Golden Quartz)

Silicon Dioxide (SiO2)

Green Quartz (Aventurine or Prase) (Silicon Dioxide (SiO2) with inclusions) — mineral

Green Quartz (Aventurine or Prase)

Silicon Dioxide (SiO2) with inclusions

Green Jasper Pebble (Microcrystalline Quartz (Chalcedony), SiO2) — sedimentary

Green Jasper Pebble

Microcrystalline Quartz (Chalcedony), SiO2

Rose Quartz (SiO2 (Silicon Dioxide) with traces of titanium, manganese, or iron) — mineral

Rose Quartz

SiO2 (Silicon Dioxide) with traces of titanium, manganese, or iron

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Chalcedony / Agate with Botryoidal Quartz (Silicon Dioxide (SiO2)) — sedimentary

Chalcedony / Agate with Botryoidal Quartz

Silicon Dioxide (SiO2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Milky Quartz Geode or Druzy Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz Geode or Druzy Quartz

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Vuggy Quartz / Chert (Silicon Dioxide (SiO2)) — sedimentary

Vuggy Quartz / Chert

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite