Rock Identifier

Category

Mineraloid (Man Made Glass)

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

Learn about Mineraloid (Man Made Glass) in the encyclopedia

Opalite

Goldstone

Shungite

Blue Goldstone

Sideromelane

Black Obsidian

Maskelynite

Obsidian

Tachylite

Map Jasper

Hyalite Opal

Perlite

Obsidian (Tumbled Apache Tear) (Volcanic Glass (SiO2)) — igneous

Obsidian (Tumbled Apache Tear)

Volcanic Glass (SiO2)

Pumice (Pumiceous volcanic glass) — igneous

Pumice

Pumiceous volcanic glass

Black Obsidian (Volcanic Glass (SiO2)) — igneous

Black Obsidian

Volcanic Glass (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Pumice (Vesicular volcanic glass) — igneous

Pumice

Vesicular volcanic glass

Pumice (Pumice (volcanic glass)) — igneous

Pumice

Pumice (volcanic glass)

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

Obsidian (Volcanic Glass)

Pumice (specifically a water-worn, weathered variety) (Vesicular volcanic glass) — igneous

Pumice (specifically a water-worn, weathered variety)

Vesicular volcanic glass

Apache Tears (Obsidian) (Volcanic Glass (SiO2)) — igneous

Apache Tears (Obsidian)

Volcanic Glass (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Pumice (likely weathered/water-worn) (Vesicular volcanic glass) — igneous

Pumice (likely weathered/water-worn)

Vesicular volcanic glass

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Obsidian (Apache Tear) (Volcanic Glass (SiO2)) — igneous

Obsidian (Apache Tear)

Volcanic Glass (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Scoria (Vesicular Basaltic Glass) — igneous

Scoria

Vesicular Basaltic Glass

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

Obsidian (Volcanic Glass)

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

Obsidian (Volcanic Glass)

Black Obsidian (Volcanic Glass (SiO2)) — igneous

Black Obsidian

Volcanic Glass (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Silver Sheen Obsidian (Volcanic Glass (SiO2)) — igneous

Silver Sheen Obsidian

Volcanic Glass (SiO2)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

Obsidian (Volcanic Glass)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Pumice (Vesicular volcanic glass) — igneous

Pumice

Vesicular volcanic glass

Clear Quartz Sphere (Crystalline Silicon Dioxide (SiO2)) — mineral

Clear Quartz Sphere

Crystalline Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (specifically Milky Quartz Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (specifically Milky Quartz Pebble)

Silicon Dioxide (SiO2)

Chert / Flint with Cortex (Silicon Dioxide (SiO2)) — sedimentary

Chert / Flint with Cortex

Silicon Dioxide (SiO2)

Quartz on Greenstone (Silicon Dioxide (SiO2) on Altered Igneous Geologic Unit) — metamorphic

Quartz on Greenstone

Silicon Dioxide (SiO2) on Altered Igneous Geologic Unit

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

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

Smoky Quartz

Smoky Quartz (Silicon Dioxide - SiO2)

Tumbled orange chalcedony and a gray stone disk (Chalcedony (microcrystalline quartz, SiO₂); disk likely fine-grained sandstone or slate) — mineral

Tumbled orange chalcedony and a gray stone disk

Chalcedony (microcrystalline quartz, SiO₂); disk likely fine-grained sandstone or slate

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

Quartz Crystal (Geode Fragment)

Silicon Dioxide (SiO2)

Quartz (Milky/Smoky variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Smoky variety)

Silicon Dioxide (SiO2)

Sandstone (Weathered / Crushed) (Quartz Sandstone) — sedimentary

Sandstone (Weathered / Crushed)

Quartz Sandstone

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

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

Sea Glass (Amorphous Silica (Anthropogenic glass) - SiO2) — mineral

Sea Glass

Amorphous Silica (Anthropogenic glass) - SiO2

Slag Glass (Glassy Silicate Residue) — industrial byproduct

Slag Glass

Glassy Silicate Residue

industrial byproduct