Rock Identifier

Category

Mineral (Man Made Glass)

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

Learn about Mineral (Man Made Glass) in the encyclopedia

Opalite

Goldstone

Blue Goldstone

Sideromelane

Black Obsidian

Maskelynite

Tachylite

Obsidian

Map Jasper

Hyalite Opal

Perlite

Macusanite

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

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

Quartz (Milky or Druzy Quartz)

Silicon Dioxide (SiO2)

Clear quartz sphere or polished quartz cabochon (tentative) (Quartz, silicon dioxide (SiO₂); appearance may also be consistent with ordinary glass, which cannot be ruled out from the image alone) — gemstone

Clear quartz sphere or polished quartz cabochon (tentative)

Quartz, silicon dioxide (SiO₂); appearance may also be consistent with ordinary glass, which cannot be ruled out from the image alone

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz Pebble (Milky and Gray) (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz Pebble (Milky and Gray)

Quartz (Silicon Dioxide, SiO2)

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

Quartz (Milky/Iron-stained)

Silicon Dioxide (SiO2)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Libyan Desert Glass (Impactite (High-silica tektite)) — mineral

Libyan Desert Glass

Impactite (High-silica tektite)

Sandstone (Arenite (Silicon Dioxide with various mineral cements)) — sedimentary

Sandstone

Arenite (Silicon Dioxide with various mineral cements)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Agate (Agate (Chalcedony), SiO2) — Mineral

Agate

Agate (Chalcedony), SiO2

Jasper (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Jasper

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Smoky Quartz in Matrix

Silicon Dioxide (SiO2)

Quartz (Tumbled Peach/Pink Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Tumbled Peach/Pink Quartz)

Silicon Dioxide (SiO2)

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

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Quartzite with Hematite staining (Quartzite (SiO2)) — metamorphic

Quartzite with Hematite staining

Quartzite (SiO2)

Chert (with Quartz veins) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (with Quartz veins)

Microcrystalline Quartz (SiO2)

Quartz (Citrine or Iron-Stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Citrine or Iron-Stained)

Silicon Dioxide (SiO2)

Sandstone (Quartzose Sandstone) (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone (Quartzose Sandstone)

Clastic Sedimentary Rock (primarily SiO2)

Botryoidal Quartz or Chalcedony (Silicon Dioxide (SiO2)) — mineral

Botryoidal Quartz or Chalcedony

Silicon Dioxide (SiO2)

Milk Quartz (Sea Glass appearance) (Silicon Dioxide (SiO2)) — mineral

Milk Quartz (Sea Glass appearance)

Silicon Dioxide (SiO2)

Sandstone (Arenite (SiO2 based typically)) — sedimentary

Sandstone

Arenite (SiO2 based typically)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz-veined Granite or Gneiss Pebble (Silicate-rich metamorphic rock fragment) — metamorphic

Quartz-veined Granite or Gneiss Pebble

Silicate-rich metamorphic rock fragment

Quartz (Smoky or Citrine variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Smoky or Citrine variety)

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Likely weathered quartz-rich rock, possibly smoky quartz or chert (Quartz (SiO₂), though exact identification is uncertain from the photograph) — mineral

Likely weathered quartz-rich rock, possibly smoky quartz or chert

Quartz (SiO₂), though exact identification is uncertain from the photograph

Sandstone (likely Arkosic or Lithic) (Clastic Sedimentary Rock (SiO2 with accessory minerals)) — sedimentary

Sandstone (likely Arkosic or Lithic)

Clastic Sedimentary Rock (SiO2 with accessory minerals)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Sandstone (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone

Clastic sedimentary rock (primarily SiO2)

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

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Chert (with Limestone and Iron Oxide staining) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (with Limestone and Iron Oxide staining)

Cryptocrystalline Quartz (SiO2)