Rock Identifier

Category

Industrial Byproduct (Anthropogenic Rock)

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

Basalt (Aphanitic mafic volcanic rock (primarily plagioclase feldspar and pyroxene)) — igneous

Basalt

Aphanitic mafic volcanic rock (primarily plagioclase feldspar and pyroxene)

igneous
Unakite (Unakite (Metamorphosed granite)) — metamorphic

Unakite

Unakite (Metamorphosed granite)

metamorphic
Serpentine (Antigorite, Lizardite, and Chrysotile (Mg3Si2O5(OH)4)) — metamorphic

Serpentine

Antigorite, Lizardite, and Chrysotile (Mg3Si2O5(OH)4)

metamorphic
Granodiorite (Granodiorite (containing Quartz, Plagioclase, Orthoclase, Biotite/Hornblende)) — igneous

Granodiorite

Granodiorite (containing Quartz, Plagioclase, Orthoclase, Biotite/Hornblende)

igneous
Unakite (Unakite (altered granite)) — metamorphic

Unakite

Unakite (altered granite)

metamorphic
Unakite (or Epidote-rich Granite) (Unakite (composed of Epidote {Ca2(Al, Fe)3(SiO4)3(OH)}, Pink Orthoclase Feldspar {KAlSi3O8}, and Quartz {SiO2})) — metamorphic

Unakite (or Epidote-rich Granite)

Unakite (composed of Epidote {Ca2(Al, Fe)3(SiO4)3(OH)}, Pink Orthoclase Feldspar {KAlSi3O8}, and Quartz {SiO2})

metamorphic
Serpentine (Antigorite, Lizardite, or Chrysotile (Mg, Fe)3Si2O5(OH)4) — metamorphic

Serpentine

Antigorite, Lizardite, or Chrysotile (Mg, Fe)3Si2O5(OH)4

metamorphic
Basalt Pebble (Basalt) — igneous

Basalt Pebble

Basalt

igneous
Ocean Jasper or Orbicular Jasper (SiO2) — mineral

Ocean Jasper or Orbicular Jasper

SiO2

mineral
Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

sedimentary
Boulder Opal (Hydrated Silica (SiO2·nH2O)) — mineraloid

Boulder Opal

Hydrated Silica (SiO2·nH2O)

mineraloid
Polygenetic Conglomerate (or Breccia) (Clastic Sedimentary Rock) — sedimentary

Polygenetic Conglomerate (or Breccia)

Clastic Sedimentary Rock

sedimentary
Granite River Cobble (Phaneritic Felsic Igneous Rock) — igneous

Granite River Cobble

Phaneritic Felsic Igneous Rock

igneous
River Pebble (Basalt or Gabbro) (Mafic Igneous Rock) — igneous

River Pebble (Basalt or Gabbro)

Mafic Igneous Rock

igneous
Raw Diamond (Diamond (pure Carbon, C)) — mineral

Raw Diamond

Diamond (pure Carbon, C)

mineral
Schist (Chlorite-Mica Schist) — metamorphic

Schist

Chlorite-Mica Schist

metamorphic
Breciated Limestone with Calcite Veins (Sedimentary Breccia (CaCO3)) — sedimentary

Breciated Limestone with Calcite Veins

Sedimentary Breccia (CaCO3)

sedimentary
Druzy Quartz Geode (likely Smokey Quartz variety) (Silicon Dioxide (SiO2) - specifically a geode formation lined with druzy quartz crystals, with a likely brownish hue indicating smokey quartz.) — Mineral structure/Rock

Druzy Quartz Geode (likely Smokey Quartz variety)

Silicon Dioxide (SiO2) - specifically a geode formation lined with druzy quartz crystals, with a likely brownish hue indicating smokey quartz.

Mineral structure/Rock
Scoria (Lava Rock) (Scoria (Basaltic Scoria)) — Igneous

Scoria (Lava Rock)

Scoria (Basaltic Scoria)

Igneous
Scoria (Lava Rock) (Vesicular Basalt / Scoria) — igneous

Scoria (Lava Rock)

Vesicular Basalt / Scoria

igneous
Vesicular Basalt (Extrusive mafic igneous rock) — igneous

Vesicular Basalt

Extrusive mafic igneous rock

igneous
Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

sedimentary
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Nickel (Nickel (Ni)) — mineral

Nickel

Nickel (Ni)

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

Diamond (faceted)

Diamond (Pure Carbon, C)

mineral
Aragonite Star Cluster (Aragonite (Calcium Carbonate, CaCO3)) — mineral

Aragonite Star Cluster

Aragonite (Calcium Carbonate, CaCO3)

mineral
Schorl (Black Tourmaline) (Sodium Iron Aluminum Borosilicate Hydroxide; NaFe2+3Al6Si6O18(BO3)3(OH)3OH) — mineral

Schorl (Black Tourmaline)

Sodium Iron Aluminum Borosilicate Hydroxide; NaFe2+3Al6Si6O18(BO3)3(OH)3OH

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

Olivine (Peridot)

Magnesium Iron Silicate (Mg,Fe)2SiO4

Mineral
Banded Agate (Gray Agate) (Silicon Dioxide (SiO2) - Chalcedony) — mineral

Banded Agate (Gray Agate)

Silicon Dioxide (SiO2) - Chalcedony

mineral
Milky Quartz Pebble (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

mineral
Red Quartzite (Quartzite (SiO2)) — metamorphic

Red Quartzite

Quartzite (SiO2)

metamorphic
Vesicular Basalt (or Scoria) (Basalt (Aphanitic-Vesicular Mafic Igneous Rock)) — igneous

Vesicular Basalt (or Scoria)

Basalt (Aphanitic-Vesicular Mafic Igneous Rock)

igneous
Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

sedimentary
Sandstone (Arenite) — sedimentary

Sandstone

Arenite

sedimentary
Shale with Vein Infillings (Shale (a fine-grained clastic sedimentary rock). The veins could be Calcite (CaCO3), Quartz (SiO2), or other minerals.) — Sedimentary Rock

Shale with Vein Infillings

Shale (a fine-grained clastic sedimentary rock). The veins could be Calcite (CaCO3), Quartz (SiO2), or other minerals.

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

Quartzite River Rock

Quartzite (primarily SiO2)

metamorphic
Scoria (Lava Rock) (Scoria) — igneous

Scoria (Lava Rock)

Scoria

igneous
Mica Schist (Muscovite/Biotite Schist) — metamorphic

Mica Schist

Muscovite/Biotite Schist

metamorphic
Botryoidal Chalcedony (Cryptocrystalline Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony

Cryptocrystalline Silicon Dioxide (SiO2)

mineral
Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

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

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

mineral
Quartz pebble (Silicon dioxide (SiO2)) — Mineral

Quartz pebble

Silicon dioxide (SiO2)

Mineral