Rock Identifier

Category

Antropogenic (Man Made Glass Byproduct)

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

Learn about Antropogenic (Man Made Glass Byproduct) in the encyclopedia

Opalite

Goldstone

Blue Goldstone

Zincite

Mint Obsidian

Blue Obsidian

Green Obsidian

Crimson Obsidian

Cherry Obsidian

Tangerine Obsidian

Emerald Green Obsidian

Violet Obsidian

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Brown Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Brown Chert

Microcrystalline Quartz (SiO2)

Chert (Flint) (Chert (SiO2)) — sedimentary

Chert (Flint)

Chert (SiO2)

Faceted clear gemstone in a gold-tone ring, likely colorless glass or cubic zirconia (Undetermined; possible cubic zirconia (ZrO₂) or glass (amorphous SiO₂)) — gemstone

Faceted clear gemstone in a gold-tone ring, likely colorless glass or cubic zirconia

Undetermined; possible cubic zirconia (ZrO₂) or glass (amorphous SiO₂)

Tumbled chalcedony (likely milky quartz) (Microcrystalline quartz, SiO₂; possibly pale agate or quartzite) — mineral

Tumbled chalcedony (likely milky quartz)

Microcrystalline quartz, SiO₂; possibly pale agate or quartzite

Chert (Quartz Variety) (Chert (Silicon Dioxide, SiO2)) — sedimentary

Chert (Quartz Variety)

Chert (Silicon Dioxide, SiO2)

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

Chert (Black Flint)

Silicon Dioxide (SiO2)

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

Chert / Flint

Microcrystalline Quartz (SiO2)

Chert (Common Opal/Jasper variety) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Common Opal/Jasper variety)

Cryptocrystalline Quartz (SiO2)

Sandstone (specifically Arkose or Quartz Arenite) (Arenite (primarily SiO2 with possible Feldspar)) — sedimentary

Sandstone (specifically Arkose or Quartz Arenite)

Arenite (primarily SiO2 with possible Feldspar)

Milky quartz (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz

Quartz, silicon dioxide (SiO₂)

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

Chert (Flint)

Silicon Dioxide (SiO2)

Granite (Phaneritic Felsic Igneous Rock) — igneous

Granite

Phaneritic Felsic Igneous Rock

Likely banded obsidian or dark volcanic glass (Obsidian, predominantly rhyolitic volcanic glass (SiO₂-rich), possibly with devitrified bands and phenocrysts) — igneous

Likely banded obsidian or dark volcanic glass

Obsidian, predominantly rhyolitic volcanic glass (SiO₂-rich), possibly with devitrified bands and phenocrysts

Sandstone (Arenite (variable SiO2 composition)) — sedimentary

Sandstone

Arenite (variable SiO2 composition)

Green aventurine (likely), shaped star (Quartz, SiO₂, with green fuchsite inclusions) — mineral

Green aventurine (likely), shaped star

Quartz, SiO₂, with green fuchsite inclusions

Goldstone (Not a natural mineral or rock. It is an ornamental glass.) — Manufactured Glass (Simulant)

Goldstone

Not a natural mineral or rock. It is an ornamental glass.

Manufactured Glass (Simulant)

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

Sandstone

Arenite (composed primarily of SiO2)

Chert (Flint Nodules) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Flint Nodules)

Cryptocrystalline Quartz (SiO2)

Chert (Chocolate or Brown Flint) (Chert (SiO2)) — sedimentary

Chert (Chocolate or Brown Flint)

Chert (SiO2)

Sandstone (Sedimentary Rock (Quartz Sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartz Sandstone)

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

Chert (Flint/Chalcedony)

Silicon Dioxide (SiO2)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Green gemstone ring (likely synthetic or imitation emerald) (Possibly emerald, beryl (Be₃Al₂Si₆O₁₈); the photo cannot confirm the center stone’s identity or whether it is natural.) — gemstone

Green gemstone ring (likely synthetic or imitation emerald)

Possibly emerald, beryl (Be₃Al₂Si₆O₁₈); the photo cannot confirm the center stone’s identity or whether it is natural.

Tumbled brown chalcedony or jasper (Microcrystalline quartz, SiO₂; possibly iron-bearing jasper) — mineral

Tumbled brown chalcedony or jasper

Microcrystalline quartz, SiO₂; possibly iron-bearing jasper

Chert (Microcrystalline quartz (SiO2)) — sedimentary

Chert

Microcrystalline quartz (SiO2)

Tourmalinated quartz point (Quartz (SiO₂) containing black tourmaline, usually schorl (NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)) — mineral

Tourmalinated quartz point

Quartz (SiO₂) containing black tourmaline, usually schorl (NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Chert (and/or Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (and/or Flint)

Microcrystalline Quartz (SiO2)

Amber jewelry (possibly amber-colored glass or resin) (Amber — fossilized plant resin, chiefly composed of polymerized terpenoids; the pictured material cannot be confirmed from the image) — gemstone

Amber jewelry (possibly amber-colored glass or resin)

Amber — fossilized plant resin, chiefly composed of polymerized terpenoids; the pictured material cannot be confirmed from the image

Loose faceted colorless gemstones, likely quartz or glass-like mineral chips (Most consistent with quartz (SiO₂), though the photograph cannot exclude synthetic cubic zirconia or glass) — gemstone

Loose faceted colorless gemstones, likely quartz or glass-like mineral chips

Most consistent with quartz (SiO₂), though the photograph cannot exclude synthetic cubic zirconia or glass

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Chert (varieties include Flint and Mudstone) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (varieties include Flint and Mudstone)

Microcrystalline Silica (SiO2)

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

Chert (Flint)

Silicon Dioxide (SiO2)

Flint (Silicon dioxide (SiO2)) — sedimentary

Flint

Silicon dioxide (SiO2)

Polished dendritic agate cabochon (likely agate or jasper) (Microcrystalline quartz, SiO₂, commonly chalcedony with iron-oxide inclusions) — gemstone

Polished dendritic agate cabochon (likely agate or jasper)

Microcrystalline quartz, SiO₂, commonly chalcedony with iron-oxide inclusions

Diamond (likely) in an antique gold ring (Diamond, crystalline carbon (C)) — gemstone

Diamond (likely) in an antique gold ring

Diamond, crystalline carbon (C)

Tumbled chalcedony (likely agate or jasper fragment) (Microcrystalline quartz, SiO₂ (chalcedony)) — mineral

Tumbled chalcedony (likely agate or jasper fragment)

Microcrystalline quartz, SiO₂ (chalcedony)

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

Chert (Jasper variety)

Microcrystalline Quartz (SiO2)

Quartzite (Metamorphosed Quartz Sandstone) — metamorphic

Quartzite

Metamorphosed Quartz Sandstone