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

Milky Quartz with Chlorite/Mica inclusions (Silicon Dioxide (SiO2) with phyllosilicate inclusions) — mineral

Milky Quartz with Chlorite/Mica inclusions

Silicon Dioxide (SiO2) with phyllosilicate inclusions

Greasy Quartz (likely carved Milky Quartz or Aventurine) (Silicon Dioxide (SiO2)) — mineral

Greasy Quartz (likely carved Milky Quartz or Aventurine)

Silicon Dioxide (SiO2)

Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

Sandstone (Clastic sedimentary rock (Quartz arenite)) — sedimentary

Sandstone

Clastic sedimentary rock (Quartz arenite)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Chert (Yellow Jasper variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow Jasper variant)

Microcrystalline Quartz (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

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

Sandstone

Arenite (primarily SiO2 with various cementing agents)

Quartz with Iron Oxide Inclusions (Silicon dioxide with limonite/hematite (SiO2)) — mineral

Quartz with Iron Oxide Inclusions

Silicon dioxide with limonite/hematite (SiO2)

Milky quartz with iron staining (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz with iron staining

Quartz, silicon dioxide (SiO₂)

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

Quartz Crystal Matrix

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Quartz Crystal Cluster

Silicon Dioxide (SiO2)

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

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

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

Quartz / Clear Quartz

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)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Felsic Tuff (Pyroclastic volcanic rock (Tuff)) — igneous

Felsic Tuff

Pyroclastic volcanic rock (Tuff)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz crystal point (likely smoky or iron-stained quartz) (Quartz, silicon dioxide (SiO₂)) — mineral

Quartz crystal point (likely smoky or iron-stained quartz)

Quartz, silicon dioxide (SiO₂)

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

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Green Aventurine (Aventurine Quartz (SiO2 + Fuchsite inclusions)) — mineral

Green Aventurine

Aventurine Quartz (SiO2 + Fuchsite inclusions)

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

Clear Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Mica (Muscovite / Biotite (Phyllosilicate group)) — mineral

Mica

Muscovite / Biotite (Phyllosilicate group)

Tumbled green aventurine (Quartzite dominated by quartz (SiO₂), with green mica/fuchsite inclusions) — mineral

Tumbled green aventurine

Quartzite dominated by quartz (SiO₂), with green mica/fuchsite inclusions

Quartz and Quartzite (Silicon Dioxide (SiO2)) — mineral

Quartz and Quartzite

Silicon Dioxide (SiO2)

Sandstone (Sedimentary Rock (Quartzose Sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartzose Sandstone)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Polished brown mineral fragment, likely quartz-rich iron-stained material (Possibly quartz (SiO₂) with iron-oxide inclusions; exact identification is uncertain from the image) — mineral

Polished brown mineral fragment, likely quartz-rich iron-stained material

Possibly quartz (SiO₂) with iron-oxide inclusions; exact identification is uncertain from the image

White Quartz Crystal Cluster (Silicon Dioxide (SiO2)) — mineral

White Quartz Crystal Cluster

Silicon Dioxide (SiO2)

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

Sandstone

Arenite (composed primarily of SiO2)

Milky Quartz (with Chlorite/Mineral Inclusions) (Silicon Dioxide (SiO2)) — mineral

Milky Quartz (with Chlorite/Mineral Inclusions)

Silicon Dioxide (SiO2)

Ruby (varieties of Corundum) (Aluminum oxide (Al2O3) with Chromium traces) — mineral

Ruby (varieties of Corundum)

Aluminum oxide (Al2O3) with Chromium traces

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

Quartz (Clear Quartz)

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Potassium Feldspar and Quartz (KAlSi3O8 (Potassium Feldspar) and SiO2 (Quartz)) — mineral

Potassium Feldspar and Quartz

KAlSi3O8 (Potassium Feldspar) and SiO2 (Quartz)

Quartz (Granular Milky Quartz fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Granular Milky Quartz fragment)

Silicon Dioxide (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

Obsidian (Volcanic Glass)