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

Slag Glass / Industrial Slag (Anthropogenic Glass) — man-made glass / industrial byproduct

Slag Glass / Industrial Slag

Anthropogenic Glass

man-made glass / industrial byproduct

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Tumbled brown chalcedony or agate (Microcrystalline quartz (SiO₂), likely chalcedony; possibly iron-stained jasper or agate) — gemstone

Tumbled brown chalcedony or agate

Microcrystalline quartz (SiO₂), likely chalcedony; possibly iron-stained jasper or agate

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Chert Pebble (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert Pebble

Chert (Microcrystalline Quartz, SiO2)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Sandstone (Arenite (SiO2 principal)) — sedimentary

Sandstone

Arenite (SiO2 principal)

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

Chert / Flint

Silicon Dioxide (SiO2)

Likely flint (dark chert) (Microcrystalline quartz (SiO₂), commonly called chert or flint) — sedimentary

Likely flint (dark chert)

Microcrystalline quartz (SiO₂), commonly called chert or flint

Dyed Quartz Cube (Silicon Dioxide (SiO2)) — mineral

Dyed Quartz Cube

Silicon Dioxide (SiO2)

Yellow chalcedony (possibly iron-stained agate) (Microcrystalline quartz, SiO₂) — mineral

Yellow chalcedony (possibly iron-stained agate)

Microcrystalline quartz, SiO₂

Red jasper pebble (Jasper, an opaque, iron-oxide-colored variety of microcrystalline quartz (SiO₂)) — mineral

Red jasper pebble

Jasper, an opaque, iron-oxide-colored variety of microcrystalline quartz (SiO₂)

Chalcedony (likely agate) (Microcrystalline quartz, SiO₂; agate is banded chalcedony) — mineral

Chalcedony (likely agate)

Microcrystalline quartz, SiO₂; agate is banded chalcedony

Carved quartz (likely rose quartz and green aventurine/quartz) (Quartz, silicon dioxide (SiO₂); green material may be aventurine quartz or serpentine) — gemstone

Carved quartz (likely rose quartz and green aventurine/quartz)

Quartz, silicon dioxide (SiO₂); green material may be aventurine quartz or serpentine

Red gemstone ring, likely garnet or synthetic ruby (Possibly almandine garnet (Fe₃Al₂(SiO₄)₃) or corundum/ruby (Al₂O₃); image alone cannot distinguish) — gemstone

Red gemstone ring, likely garnet or synthetic ruby

Possibly almandine garnet (Fe₃Al₂(SiO₄)₃) or corundum/ruby (Al₂O₃); image alone cannot distinguish

Basalt (Basalt) — igneous

Basalt

Basalt

Quartzite (Metamorphic Quartz Arenite) — metamorphic

Quartzite

Metamorphic Quartz Arenite

Red Slag Glass (Cullet) (Amorphous Silicon Dioxide (SiO2) with metallic dopants) — Antropogenic (Man-made material)

Red Slag Glass (Cullet)

Amorphous Silicon Dioxide (SiO2) with metallic dopants

Antropogenic (Man-made material)

Clear quartz crystal pendant (Quartz (silicon dioxide, SiO₂)) — mineral

Clear quartz crystal pendant

Quartz (silicon dioxide, SiO₂)

Polished hematite (specimen identification uncertain) (Hematite, α-Fe₂O₃) — mineral

Polished hematite (specimen identification uncertain)

Hematite, α-Fe₂O₃

Likely river-worn chert (flint) pebble (Microcrystalline quartz (SiO₂), commonly called chert or flint) — sedimentary

Likely river-worn chert (flint) pebble

Microcrystalline quartz (SiO₂), commonly called chert or flint

Quartzite (Metamorphic Quartz Rock (SiO2)) — metamorphic

Quartzite

Metamorphic Quartz Rock (SiO2)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Chert (Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Red-orange sunstone (likely aventurine feldspar) bead bracelet (Feldspar, commonly oligoclase or labradorite with copper inclusions; composition varies by source) — mineral

Red-orange sunstone (likely aventurine feldspar) bead bracelet

Feldspar, commonly oligoclase or labradorite with copper inclusions; composition varies by source

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Chert (Chert / Flint Variety) (Microcrystalline / Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Chert / Flint Variety)

Microcrystalline / Cryptocrystalline Quartz (SiO2)

Chert (Microcrystalline silica (SiO2)) — sedimentary

Chert

Microcrystalline silica (SiO2)

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

Chert (Flint)

Chert (Silicon Dioxide, SiO2)

Flint / Chert Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Flint / Chert Pebble

Microcrystalline Quartz (SiO2)

Chert (and Agate/Chalcedony) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (and Agate/Chalcedony)

Microcrystalline Quartz (SiO2)

Chert / Jasper (Silicon Dioxide (SiO₂)) — sedimentary

Chert / Jasper

Silicon Dioxide (SiO₂)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Chert (Jasper variation) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper variation)

Microcrystalline Quartz (SiO2)

Blue-dyed Quartz Druzy (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Blue-dyed Quartz Druzy

Silicon Dioxide (SiO2) with artificial pigment

Mica (likely biotite-rich mica aggregate) (Biotite, a potassium–iron–magnesium mica; approximate formula K(Mg,Fe)₃AlSi₃O₁₀(F,OH)₂) — mineral

Mica (likely biotite-rich mica aggregate)

Biotite, a potassium–iron–magnesium mica; approximate formula K(Mg,Fe)₃AlSi₃O₁₀(F,OH)₂

Blue Lace Agate (Chalcedony (SiO2) with trace inclusions) — mineral

Blue Lace Agate

Chalcedony (SiO2) with trace inclusions

Mixed gemstone bead bracelet (Likely rose quartz, amethyst, and possibly rhodonite or lepidolite beads) — gemstone

Mixed gemstone bead bracelet

Likely rose quartz, amethyst, and possibly rhodonite or lepidolite beads

Amethyst and aquamarine gemstone bracelet (Amethyst: purple quartz, SiO₂; blue beads likely aquamarine/blue quartz, with possible metallic spacer beads) — gemstone

Amethyst and aquamarine gemstone bracelet

Amethyst: purple quartz, SiO₂; blue beads likely aquamarine/blue quartz, with possible metallic spacer beads

Sandstone (Quartzose) (Sandstone (SiO2 dominated)) — sedimentary

Sandstone (Quartzose)

Sandstone (SiO2 dominated)

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

Chert (Jasper)

Silicon Dioxide (SiO2)

Diamond (or Diamond Simulant) (Carbon (C)) — mineral

Diamond (or Diamond Simulant)

Carbon (C)