Rock Identifier

Category

Man Made Byproduct (Non Geological)

Browse man made byproduct (non geological) specimens identified by the Rock Identifier community.

Learn about Man Made Byproduct (Non Geological) in the encyclopedia

Opalite

Goldstone

Blue Goldstone

Zincite

Lherzolite

Gondite

Dunite

Barite (Barium Sulfate (BaSO4)) — mineral

Barite

Barium Sulfate (BaSO4)

Obsidian (Volcanic Glass (mostly SiO2)) — igneous

Obsidian

Volcanic Glass (mostly SiO2)

Obsidian (Volcanic glass (SiO2 - Silicon Dioxide with impurities)) — Igneous

Obsidian

Volcanic glass (SiO2 - Silicon Dioxide with impurities)

Obsidian (Volcanic glass) — igneous

Obsidian

Volcanic glass

Limonite Pseudomorph after Pyrite (Limonite (Hydrous iron oxides, FeO(OH)·nH2O) replacing Pyrite (FeS2)) — mineral

Limonite Pseudomorph after Pyrite

Limonite (Hydrous iron oxides, FeO(OH)·nH2O) replacing Pyrite (FeS2)

Tektite (Indochinite) (Tektite (Lechatelierite-rich silica glass)) — Mineral-like (Natural Glass)

Tektite (Indochinite)

Tektite (Lechatelierite-rich silica glass)

Mineral-like (Natural Glass)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Amethyst (SiO2 (Silicon Dioxide)) — Mineral

Amethyst

SiO2 (Silicon Dioxide)

Black Obsidian (Volcanic Glass (predominantly SiO2)) — igneous

Black Obsidian

Volcanic Glass (predominantly SiO2)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Black Obsidian (Volcanic Glass (SiO2 with impurities)) — igneous

Black Obsidian

Volcanic Glass (SiO2 with impurities)

Obsidian (Obsidian (volcanic glass; primarily SiO2)) — igneous

Obsidian

Obsidian (volcanic glass; primarily SiO2)

Siltstone River Pebble (Siltstone (primarily composed of silt-sized particles)) — sedimentary

Siltstone River Pebble

Siltstone (primarily composed of silt-sized particles)

Obsidian (Obsidian (volcanic glass), amorphous SiO2 + impurities) — igneous

Obsidian

Obsidian (volcanic glass), amorphous SiO2 + impurities

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Obsidian (Volcanic glass (mainly SiO2)) — Igneous

Obsidian

Volcanic glass (mainly SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Limonite (Yellow Ochre) (Limonite (an amorphous mixture of hydrated iron oxides, primarily FeO(OH)·nH2O)) — mineral

Limonite (Yellow Ochre)

Limonite (an amorphous mixture of hydrated iron oxides, primarily FeO(OH)·nH2O)

Anthracite Coal (Anthracite (Carbon Content: 86%-97%)) — metamorphic

Anthracite Coal

Anthracite (Carbon Content: 86%-97%)

Mahogany Obsidian (Obsidian (Volcanic Glass with Hematite inclusions)) — igneous

Mahogany Obsidian

Obsidian (Volcanic Glass with Hematite inclusions)

Malachite (Copper carbonate hydroxide [Cu2CO3(OH)2]) — mineral

Malachite

Copper carbonate hydroxide [Cu2CO3(OH)2]

Grey Quartzite Pebble (Quartzite (primarily SiO2 - Silicon Dioxide)) — metamorphic

Grey Quartzite Pebble

Quartzite (primarily SiO2 - Silicon Dioxide)

Obsidian (Obsidian (Extrusive Volcanic Glass)) — igneous

Obsidian

Obsidian (Extrusive Volcanic Glass)

Dalmatian jasper (Orbicular microcrystalline quartz rock, commonly rhyolitic or volcanic-feldspar matrix with black arfvedsonite/alkali-amphibole inclusions) — igneous

Dalmatian jasper

Orbicular microcrystalline quartz rock, commonly rhyolitic or volcanic-feldspar matrix with black arfvedsonite/alkali-amphibole inclusions

Apache Tear (Obsidian) (Obsidian / Amorphous Volcanic Glass (primarily SiO2)) — igneous

Apache Tear (Obsidian)

Obsidian / Amorphous Volcanic Glass (primarily SiO2)

Obsidian (Obsidian (Volcanic Glass, SiO2 + impurities)) — igneous

Obsidian

Obsidian (Volcanic Glass, SiO2 + impurities)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Obsidian (Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)) — igneous

Obsidian

Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)

Obsidian (Black Obsidian) (Obsidian (Volcanic Glass)) — igneous

Obsidian (Black Obsidian)

Obsidian (Volcanic Glass)

Black Obsidian (Volcanic Glass (SiO2)) — igneous

Black Obsidian

Volcanic Glass (SiO2)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

Obsidian (Volcanic Glass)

Dark metamorphic rock, likely biotite schist or gneiss (Quartz–feldspar–biotite metamorphic rock; exact identification requires a fresh surface and testing) — metamorphic

Dark metamorphic rock, likely biotite schist or gneiss

Quartz–feldspar–biotite metamorphic rock; exact identification requires a fresh surface and testing

Siltstone (Siltstone) — sedimentary

Siltstone

Siltstone

Granodiorite with Quartz Veining (Granodiorite (containing Plagioclase Feldspar, Quartz, and Biotite/Hornblende) with Quartz (SiO2) veins) — igneous

Granodiorite with Quartz Veining

Granodiorite (containing Plagioclase Feldspar, Quartz, and Biotite/Hornblende) with Quartz (SiO2) veins

River Pebble (Greywacke or Quartzite-rich Sandstone) (Lithic Sandstone (primarily SiO2 with rock fragments)) — sedimentary

River Pebble (Greywacke or Quartzite-rich Sandstone)

Lithic Sandstone (primarily SiO2 with rock fragments)

Common Opal (Green Opal / Pistachio Opal) (Hydrated silica (SiO2·nH2O)) — mineraloid

Common Opal (Green Opal / Pistachio Opal)

Hydrated silica (SiO2·nH2O)

Quartzite with Iron Oxide Vein (Metamorphic Quartzite (SiO2 with Hematite/Limonite impurities)) — metamorphic

Quartzite with Iron Oxide Vein

Metamorphic Quartzite (SiO2 with Hematite/Limonite impurities)