Rock Identifier

Category

Non Geological

Browse non geological specimens identified by the Rock Identifier community.

Learn about Non Geological in the encyclopedia

Common Opal

Mudstone

Green Beryl

Matte Obsidian

Sapphire

Hornfels

Argillite

Mint Opal

Plazolite

Bixbite

Snowflake Obsidian (Volcanic Glass with Cristobalite Inclusions (SiO2)) — igneous

Snowflake Obsidian

Volcanic Glass with Cristobalite Inclusions (SiO2)

Shale (Shale (Fine-grained clastic sedimentary rock)) — sedimentary

Shale

Shale (Fine-grained clastic sedimentary rock)

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

Apache Tear

Obsidian (Hydrated Volcanic Glass, SiO2)

Red Quartzite River Stone (Metamorphic Rock (composed mainly of Quartz, SiO2)) — metamorphic

Red Quartzite River Stone

Metamorphic Rock (composed mainly of Quartz, SiO2)

Amber (Cherry or Red variety) (Succinite (with various trace amounts of organic compounds)) — Organic Gemstone (not a rock)

Amber (Cherry or Red variety)

Succinite (with various trace amounts of organic compounds)

Organic Gemstone (not a rock)

Gneiss (Gneiss (High-grade Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (High-grade Metamorphic Rock)

Bituminous Coal (Organic-rich sedimentary rock (Complex hydrocarbons)) — sedimentary

Bituminous Coal

Organic-rich sedimentary rock (Complex hydrocarbons)

Shale (Shale (comprised mostly of clay minerals and quartz)) — sedimentary

Shale

Shale (comprised mostly of clay minerals and quartz)

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt (River Pebble) (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt (River Pebble)

Basalt (Aphanitic Mafic Igneous Rock)

Quartzite Cobble (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite Cobble

Metamorphosed Quartz Sandstone (SiO2)

Opalite (Synthetic Opalised Glass) — mineraloid (synthetic)

Opalite

Synthetic Opalised Glass

mineraloid (synthetic)

Slag (Industrial Glass) (Anthropogenic Vitreous Slag (Post-industrial byproduct)) — igneous

Slag (Industrial Glass)

Anthropogenic Vitreous Slag (Post-industrial byproduct)

Quartzite (Iron-stained) (Quartzite (mostly SiO2)) — metamorphic

Quartzite (Iron-stained)

Quartzite (mostly SiO2)

Sea Glass (Turquoise/Aqua) (Amorphous Silica (SiO2) with transition metal dopants) — Anthropogenic (Man-made material processed by nature)

Sea Glass (Turquoise/Aqua)

Amorphous Silica (SiO2) with transition metal dopants

Anthropogenic (Man-made material processed by nature)

Ethiopian Fire Opal (Hydrated Silica (SiO2·nH2O)) — mineral

Ethiopian Fire Opal

Hydrated Silica (SiO2·nH2O)

Amber (Fossilized Tree Resin) — gemstone

Amber

Fossilized Tree Resin

Quartzite (Quartz Pebble) (Quartzite (SiO2 with iron oxide inclusions)) — metamorphic

Quartzite (Quartz Pebble)

Quartzite (SiO2 with iron oxide inclusions)

Coal (Anthracite / Bituminous) (Organic Sedimentary Rock (Carbon-based)) — sedimentary

Coal (Anthracite / Bituminous)

Organic Sedimentary Rock (Carbon-based)

Quartzite Pebble (Metamorphic Quartzite) — metamorphic

Quartzite Pebble

Metamorphic Quartzite

Quartzite (Quartzite (mostly SiO2)) — metamorphic

Quartzite

Quartzite (mostly SiO2)

Quartzite Cobble (Quartzite (SiO2)) — metamorphic

Quartzite Cobble

Quartzite (SiO2)

Common Opal (Potch) (Hydrated Silica (SiO2·nH2O)) — mineral

Common Opal (Potch)

Hydrated Silica (SiO2·nH2O)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (predominantly SiO2)) — metamorphic

Quartzite

Quartzite (predominantly SiO2)

Quartzite (Ferruginous) (Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 impurities)) — metamorphic

Quartzite (Ferruginous)

Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 impurities)

Quartzite River Rock (Metamorphosed Sandstone (SiO2)) — metamorphic

Quartzite River Rock

Metamorphosed Sandstone (SiO2)

Mahogany Obsidian (Volcanic Glass (with inclusions of Magnetite or Hematite)) — igneous

Mahogany Obsidian

Volcanic Glass (with inclusions of Magnetite or Hematite)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (principally SiO2)) — metamorphic

Quartzite

Quartzite (principally SiO2)

Tektite (Indochinite) (Tektite (Amorphous Silica Glass), SiO2(Al2O3)) — igneous

Tektite (Indochinite)

Tektite (Amorphous Silica Glass), SiO2(Al2O3)

Quartzite River Rock (Quartzite (primarily SiO2)) — metamorphic

Quartzite River Rock

Quartzite (primarily SiO2)

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

Chert / Flint

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Quartzite River Rock (Metamorphic Quartzite (primarily SiO2)) — metamorphic

Quartzite River Rock

Metamorphic Quartzite (primarily SiO2)

Amber (Succinite (Fossilized Tree Resin), C10H16O) — Organic Mineraloid

Amber

Succinite (Fossilized Tree Resin), C10H16O

Organic Mineraloid

Quartzite (Quartzite) — metamorphic

Quartzite

Quartzite

Amber (Succinite (Organic Mineraloid)) — mineral

Amber

Succinite (Organic Mineraloid)

Quartzite Pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble

Quartzite (primarily SiO2)

Slag Glass (Amorphous Silica / Glass Slag) — industrial byproduct (anthropogenic rock-like material)

Slag Glass

Amorphous Silica / Glass Slag

industrial byproduct (anthropogenic rock-like material)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Metamorphosed sandstone (primarily SiO2)) — metamorphic

Quartzite

Metamorphosed sandstone (primarily SiO2)

Obsidian (Volcanic Glass (SiO2 - Silicon Dioxide with impurities)) — igneous

Obsidian

Volcanic Glass (SiO2 - Silicon Dioxide with impurities)