Rock Identifier

Category

Industrial Byproduct (Anthropogenic Rock)

Browse industrial byproduct (anthropogenic rock) specimens identified by the Rock Identifier community.

Diamond (Pure Carbon (C)) — mineral

Diamond

Pure Carbon (C)

mineral
Diamond (Diamond (Pure Carbon, C)) — mineral

Diamond

Diamond (Pure Carbon, C)

mineral
Actinolite (Ca2(Mg,Fe)5Si8O22(OH)2) — mineral

Actinolite

Ca2(Mg,Fe)5Si8O22(OH)2

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

Milky Quartz with Iron Staining

Quartz (Silicon Dioxide, SiO2)

mineral
Anthracite Coal (Anthracite (Carbon-rich mineraloid)) — metamorphic

Anthracite Coal

Anthracite (Carbon-rich mineraloid)

metamorphic
Labradorite (Labradorite (Plagioclase Feldspar Series) - (Ca, Na)(Al, Si)4O8) — mineral

Labradorite

Labradorite (Plagioclase Feldspar Series) - (Ca, Na)(Al, Si)4O8

mineral
Mica-rich Sandstone or Micaceous Schist Weathering (Micaceous Schist (Muscovite-Quartz composition)) — Metamorphic or Sedimentary depending on local grade

Mica-rich Sandstone or Micaceous Schist Weathering

Micaceous Schist (Muscovite-Quartz composition)

Metamorphic or Sedimentary depending on local grade
Beach Pebble (likely Quartz or Chalcedony) (Silicon Dioxide (SiO2)) — Mineral

Beach Pebble (likely Quartz or Chalcedony)

Silicon Dioxide (SiO2)

Mineral
Blue Sapphire (Corundum (Al2O3)) — mineral

Blue Sapphire

Corundum (Al2O3)

mineral
Bixbyite on Rhyolite (Bixbyite (Mn2+,Fe3+)2O3) — mineral

Bixbyite on Rhyolite

Bixbyite (Mn2+,Fe3+)2O3

mineral
Olivine (Peridot) (Magnesium Iron Silicate (Mg,Fe)2SiO4) — mineral

Olivine (Peridot)

Magnesium Iron Silicate (Mg,Fe)2SiO4

mineral
Anthracite Coal (Anthracite) — metamorphic

Anthracite Coal

Anthracite

metamorphic
Epidote in Quartz (Epidote (Ca2(Al,Fe)3(SiO4)3(OH)) in Milky Quartz (SiO2)) — metamorphic

Epidote in Quartz

Epidote (Ca2(Al,Fe)3(SiO4)3(OH)) in Milky Quartz (SiO2)

metamorphic
Hypersthene ((Mg,Fe)SiO3 - Enstatite-Ferrosilite series) — mineral

Hypersthene

(Mg,Fe)SiO3 - Enstatite-Ferrosilite series

mineral
Chert (specifically Flint or Jasper variant) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint or Jasper variant)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

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

Chert (Nodule)

Silicon Dioxide (SiO2)

sedimentary
Jade (Jadeite/Nephrite) (NaAlSi2O6 (Jadeite) / Ca2(Mg,Fe)5Si8O22(OH)2 (Nephrite)) — metamorphic

Jade (Jadeite/Nephrite)

NaAlSi2O6 (Jadeite) / Ca2(Mg,Fe)5Si8O22(OH)2 (Nephrite)

metamorphic
Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

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

Smoky Quartz

Silicon Dioxide (SiO2)

mineral
Aquamarine (Beryl (Be3Al2Si6O18 with iron impurities)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18 with iron impurities)

mineral
Blue Sapphire (Corundum (Al2O3 with trace Titanium and Iron)) — mineral

Blue Sapphire

Corundum (Al2O3 with trace Titanium and Iron)

mineral
Rough Garnet (Almandine) (Almandine Garnet (Fe3Al2(SiO4)3)) — mineral

Rough Garnet (Almandine)

Almandine Garnet (Fe3Al2(SiO4)3)

mineral
Smoky Quartz (with Druzy/Polished Edge) (Smoky Quartz (Silicon Dioxide, SiO2)) — mineral

Smoky Quartz (with Druzy/Polished Edge)

Smoky Quartz (Silicon Dioxide, SiO2)

mineral
Green Fluorite (Beaded) (Fluorite (Calcium Fluoride, CaF2)) — mineral

Green Fluorite (Beaded)

Fluorite (Calcium Fluoride, CaF2)

mineral
Diamond (Green tinted) (Carbon (C) with trace impurities or lattice defects) — mineral

Diamond (Green tinted)

Carbon (C) with trace impurities or lattice defects

mineral
Ruby (Corundum (Al2O3 with Chromium trace elements)) — mineral

Ruby

Corundum (Al2O3 with Chromium trace elements)

mineral
Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

metamorphic
Aquamarine (Beryl (Be3Al2Si6O18 with iron impurities)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18 with iron impurities)

mineral
Chalcopyrite (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

mineral
Desert Rose (Gypsum Rose) (Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O) — mineral

Desert Rose (Gypsum Rose)

Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O

mineral
Sandstone (Arenite (Siliclastic sedimentary rock)) — sedimentary

Sandstone

Arenite (Siliclastic sedimentary rock)

sedimentary
Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

igneous
Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

igneous
Basalt (tumbled/water-worn) (Extrusive mafic igneous rock) — igneous

Basalt (tumbled/water-worn)

Extrusive mafic igneous rock

igneous
Basalt (Extrusive Mafic Igneous Rock) — igneous

Basalt

Extrusive Mafic Igneous Rock

igneous
Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

igneous
Sandstone (Quartz-rich) (Arenite) — sedimentary

Sandstone (Quartz-rich)

Arenite

sedimentary
Jasper Pendant (Chalcedony (Quartz) - SiO2) — Mineral/Sedimentary

Jasper Pendant

Chalcedony (Quartz) - SiO2

Mineral/Sedimentary
Ocean Jasper (Orbicular Jasper / Silicate) — Mineral

Ocean Jasper

Orbicular Jasper / Silicate

Mineral
Chert (Brecciated Chert) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Brecciated Chert)

Silicon Dioxide (SiO2)

sedimentary
Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

metamorphic
Basalt (Basalt (Vitreous to Aphanitic Mafic Igneous Rock)) — igneous

Basalt

Basalt (Vitreous to Aphanitic Mafic Igneous Rock)

igneous