Rock Identifier

Category

Industrial Byproduct (Anthropogenic Material)

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

Learn about Industrial Byproduct (Anthropogenic Material) in the encyclopedia

Adirondack Garnet

Adirondack Garnet

Peat

Almandine Garnet

Almandine Garnet

Dunite

Limonite

Shell Opal

Madagascar Opal

Lavender Obsidian

Electric Blue Obsidian

Orange Obsidian

Diamond

Metarhyolite

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Almandine Garnet (Fe3Al2(SiO4)3) — gemstone

Almandine Garnet

Fe3Al2(SiO4)3

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Muscovite Mica Schist (Metamorphic Rock (Muscovite-Biotite Schist)) — metamorphic

Muscovite Mica Schist

Metamorphic Rock (Muscovite-Biotite Schist)

Quartz Cluster (Silicon Dioxide (SiO2)) — mineral

Quartz Cluster

Silicon Dioxide (SiO2)

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

Garnet (Almandine)

Fe3Al2(SiO4)3

Black Garnet (Melanite) (Andradite, Ca3Fe2(SiO4)3) — mineral

Black Garnet (Melanite)

Andradite, Ca3Fe2(SiO4)3

Diamond (C (Carbon)) — gemstone

Diamond

C (Carbon)

Quartz with Mica (Granitic / Pegmatitic Quartz) (Silicon Dioxide (SiO2) with Mica group minerals) — mineral

Quartz with Mica (Granitic / Pegmatitic Quartz)

Silicon Dioxide (SiO2) with Mica group minerals

Quartz Pebble (Crystalline Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Crystalline Silicon Dioxide (SiO2)

Garnet (Silicate mineral group (often Pyrope or Almandine in this color range)) — gemstone

Garnet

Silicate mineral group (often Pyrope or Almandine in this color range)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Black Tourmaline (Schorl) (Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Black Tourmaline (Schorl)

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Raw Ruby (Corundum) (Corundum (Aluminum Oxide, Al2O3)) — mineral

Raw Ruby (Corundum)

Corundum (Aluminum Oxide, Al2O3)

Milky Quartz Pebble with Iron Inclusions (Silicon Dioxide (SiO2) with iron oxide impurities) — sedimentary

Milky Quartz Pebble with Iron Inclusions

Silicon Dioxide (SiO2) with iron oxide impurities

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

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

Milky Quartz with Iron Staining

Crystalline Silicon Dioxide (SiO2)

Quartz Pebble with Iron Staining (Silicon Dioxide (SiO2) with Hematite/Limonite matrix) — mineral

Quartz Pebble with Iron Staining

Silicon Dioxide (SiO2) with Hematite/Limonite matrix

White Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

White Quartz Pebble

Silicon Dioxide (SiO2)

Diamond (C) — gemstone

Diamond

C

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Pumice (Basaltic/Scoria) (Vesicular Basalt / Scoria) — igneous

Pumice (Basaltic/Scoria)

Vesicular Basalt / Scoria

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

Diamond (or Simulant)

Carbon (C)

Mica Schist (Mica Schist (contains Muscovite KAl2(AlSi3O10)(OH)2)) — metamorphic

Mica Schist

Mica Schist (contains Muscovite KAl2(AlSi3O10)(OH)2)

Chert (Common Opal/Jasper variant) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Common Opal/Jasper variant)

Silicon Dioxide (SiO2)

Sodalite (Sodalite (Na8(Al6Si6O24)Cl2)) — mineral

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Black Tourmaline (Schorl) (Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Black Tourmaline (Schorl)

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Gold and Diamond Jewelry (Native Gold (Au) and Diamond (C)) — gemstone

Gold and Diamond Jewelry

Native Gold (Au) and Diamond (C)

Mica Schist (Mica-rich Schist containing Muscovite and Quartz) — metamorphic

Mica Schist

Mica-rich Schist containing Muscovite and Quartz

Banded Agate (Tumbled) (Silicon Dioxide (SiO2)) — sedimentary

Banded Agate (Tumbled)

Silicon Dioxide (SiO2)

Anthracite Coal (Anthracite) — sedimentary

Anthracite Coal

Anthracite

White Topaz (Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2]) — gemstone

White Topaz

Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2]

White Marble (Recrystallized Calcite (CaCO3)) — metamorphic

White Marble

Recrystallized Calcite (CaCO3)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Chalcedony (Common Agate) (Silicon Dioxide (SiO₂)) — mineral

Chalcedony (Common Agate)

Silicon Dioxide (SiO₂)

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

Basalt River Stone

Basalt (Mafic volcanic rock)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Yellow Sapphire (Corundum) (Corundum (Aluminum Oxide, Al2O3)) — mineral

Yellow Sapphire (Corundum)

Corundum (Aluminum Oxide, Al2O3)

Rough Diamond (Carbon (C)) — mineral

Rough Diamond

Carbon (C)

Quartz (Iron-stained or Orange Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained or Orange Quartz)

Silicon Dioxide (SiO2)