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

Bituminous Coal (Humic coal (Carboniferous fossil fuel)) — sedimentary

Bituminous Coal

Humic coal (Carboniferous fossil fuel)

Greywacke (Dirty Sandstone (Lithic wacke)) — sedimentary

Greywacke

Dirty Sandstone (Lithic wacke)

Pumice (Pumice (Amorphous volcanic glass)) — igneous

Pumice

Pumice (Amorphous volcanic glass)

Pumice (Pumice (a highly vesicular volcanic glass)) — igneous

Pumice

Pumice (a highly vesicular volcanic glass)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Basalt (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Basalt

Basalt (Mafic Extrusive Igneous Rock)

Basalt with Desert Varnish (Mafic Volcanic Rock (Fe/Mg rich Silicate)) — igneous

Basalt with Desert Varnish

Mafic Volcanic Rock (Fe/Mg rich Silicate)

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

Basalt (River Pebble)

Basalt (Mafic Extrusive Igneous Rock)

Vesicular Basalt (Basalt (with vesicular texture)) — igneous

Vesicular Basalt

Basalt (with vesicular texture)

Pumice and Scoria (Vesicular Volcanic Ejecta (Rhyolite/Andesite/Basalt)) — igneous

Pumice and Scoria

Vesicular Volcanic Ejecta (Rhyolite/Andesite/Basalt)

Pink Granite (Granite (Felsic plutonic rock)) — igneous

Pink Granite

Granite (Felsic plutonic rock)

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

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt (Vesicular) (Basalt) — igneous

Basalt (Vesicular)

Basalt

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Petrified Wood (Petrified Wood (Silicified Wood)) — fossil

Petrified Wood

Petrified Wood (Silicified Wood)

Diamond in Kimberlite (Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)) — igneous

Diamond in Kimberlite

Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)

Quartz Sand (Silicon Dioxide (SiO2)) — sedimentary

Quartz Sand

Silicon Dioxide (SiO2)

Crushed Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Crushed Limestone

Calcium Carbonate (CaCO3)

Jasper (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper

Silicon Dioxide (SiO2) with impurities

Serpentinite (or Green Quartz Pebble) (Mg3Si2O5(OH)4 (Serpentine group) / SiO2 (Quartz mix)) — metamorphic

Serpentinite (or Green Quartz Pebble)

Mg3Si2O5(OH)4 (Serpentine group) / SiO2 (Quartz mix)

Red Sandstone (Arenite (Iron-rich)) — sedimentary

Red Sandstone

Arenite (Iron-rich)

Sandstone (Quartzose Sandstone) (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone (Quartzose Sandstone)

Clastic Sedimentary Rock (primarily SiO2)

Granite (Granite) — Igneous

Granite

Granite

Tiny amber-colored crystal fragment (Indeterminate; possibly quartz, feldspar, mica, or a sulfide mineral) — mineral

Tiny amber-colored crystal fragment

Indeterminate; possibly quartz, feldspar, mica, or a sulfide mineral

Dyed or color-enhanced agate/microcrystalline quartz bead (Chalcedony (microcrystalline SiO₂), likely agate) — gemstone

Dyed or color-enhanced agate/microcrystalline quartz bead

Chalcedony (microcrystalline SiO₂), likely agate

Agate (Silicon dioxide (Chalcedony), SiO2) — gemstone

Agate

Silicon dioxide (Chalcedony), SiO2

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Muscovite Mica (Muscovite (KAl2(AlSi3O10)(F,OH)2)) — mineral

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(F,OH)2)

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

Agate

Silicon Dioxide (Chalcedony), SiO2

Agate Nodule (Silicon Dioxide (Quartz/Chalcedony), SiO2) — sedimentary

Agate Nodule

Silicon Dioxide (Quartz/Chalcedony), SiO2

Native Copper (Copper (Cu)) — mineral

Native Copper

Copper (Cu)

Quartz (Agate/Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Quartz (Agate/Chalcedony)

Silicon Dioxide (SiO2)

Quartz Vein in Host Rock (Silicon Dioxide (SiO2) in matrix) — mineral

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) in matrix

Pink Quartz (Silicon Dioxide (SiO2)) — mineral

Pink Quartz

Silicon Dioxide (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Pink Quartz (Silicon Dioxide (SiO2)) — mineral

Pink Quartz

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Yellow/Iron-stained Quartzite or Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Quartz (Yellow/Iron-stained Quartzite or Chalcedony)

Silicon Dioxide (SiO2)

Feldspar (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar group)) — mineral

Feldspar

KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar group)

Quartz (Druzy) on Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz (Druzy) on Matrix

Silicon Dioxide (SiO2)