Rock Identifier

Category

Industrial Byproduct (Anthropogenic Rock)

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

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

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Pumice (Pumice (Amorphous volcanic glass)) — igneous

Pumice

Pumice (Amorphous volcanic glass)

Granite (Granite (composed of Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Granite (composed of Quartz, Alkali Feldspar, and Plagioclase)

Quartz Geode (Cracked Open Fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz Geode (Cracked Open Fragment)

Silicon Dioxide (SiO2)

Pumice (Pumicite) — igneous

Pumice

Pumicite

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

River Pebble (Basalt)

Basalt (Aphanitic Mafic Igneous Rock)

Anthracite Coal (Anthracite (Carbon-rich metamorphic sedimentary rock)) — sedimentary

Anthracite Coal

Anthracite (Carbon-rich metamorphic sedimentary rock)

Druzy Quartz (part of a Geode) (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz (part of a Geode)

Silicon Dioxide (SiO2)

Sandstone (Banded) (Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide staining)) — sedimentary

Sandstone (Banded)

Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide staining)

Olivine in Basalt (Peridot) (Magnesium Iron Silicate (Mg,Fe)2SiO4 (Mineral) / Scoriaceous Basalt (Host Rock)) — igneous

Olivine in Basalt (Peridot)

Magnesium Iron Silicate (Mg,Fe)2SiO4 (Mineral) / Scoriaceous Basalt (Host Rock)

Almandine Garnet in Matrix (Almandine Garnet (Fe3Al2(SiO4)3)) — metamorphic

Almandine Garnet in Matrix

Almandine Garnet (Fe3Al2(SiO4)3)

Bauxite (Bauxite (mixture of Hydrous Aluminum Oxides)) — sedimentary

Bauxite

Bauxite (mixture of Hydrous Aluminum Oxides)

Sandstone (Arenite (composed primarily of Quartz: SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of Quartz: SiO2)

Desert Rose (Gypsum (variety Selenite) or Barite, CaSO4·2H2O) — mineral

Desert Rose

Gypsum (variety Selenite) or Barite, CaSO4·2H2O

Quartz Vein in Host Rock (Silicon Dioxide (SiO2) within Metasedimentary or Igneous Matrix) — metamorphic

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) within Metasedimentary or Igneous Matrix

Calcite Geode (Calcium Carbonate (CaCO3)) — mineral

Calcite Geode

Calcium Carbonate (CaCO3)

Marble (Recrystallized Calcite (CaCO3) Rock) — metamorphic

Marble

Recrystallized Calcite (CaCO3) Rock

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Quartz Geode in Sedimentary Matrix (Silicon Dioxide (SiO2) within a limestone/dolostone host) — mineral

Quartz Geode in Sedimentary Matrix

Silicon Dioxide (SiO2) within a limestone/dolostone host

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Anthracite Coal (Anthracite (Carbon C)) — metamorphic

Anthracite Coal

Anthracite (Carbon C)

Limestone (Sedimentary rock composed primarily of Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary rock composed primarily of Calcium Carbonate (CaCO3)

Almandine Garnet (Iron aluminum silicate (Fe3Al2(SiO4)3)) — mineral

Almandine Garnet

Iron aluminum silicate (Fe3Al2(SiO4)3)

Portable Ceramic Space Heater (Polished Acrylonitrile Butadiene Styrene (ABS) Plastic with Ceramic Heating Elements) — not a rock (synthetic/industrial object)

Portable Ceramic Space Heater

Polished Acrylonitrile Butadiene Styrene (ABS) Plastic with Ceramic Heating Elements

not a rock (synthetic/industrial object)

Fluorite (often referred to as Rainbow Fluorite) (Fluorite (Calcium Fluoride, CaF2)) — mineral

Fluorite (often referred to as Rainbow Fluorite)

Fluorite (Calcium Fluoride, CaF2)

Sandstone with Foliose Lichen (Arenite (Rock matrix) with Xanthoparmelia or Flavoparmelia (Lichen genus)) — sedimentary

Sandstone with Foliose Lichen

Arenite (Rock matrix) with Xanthoparmelia or Flavoparmelia (Lichen genus)

Slate (Slate (Metamorphic Rock)) — metamorphic

Slate

Slate (Metamorphic Rock)

Serpentinite (Serpentine rock (Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4) — metamorphic

Serpentinite

Serpentine rock (Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4

Milky Quartz (Crystal Cluster) (Silicon Dioxide (SiO2) - Quartz Variety) — mineral

Milky Quartz (Crystal Cluster)

Silicon Dioxide (SiO2) - Quartz Variety

Jasper and Agate (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper and Agate

Microcrystalline Quartz (SiO2)

Chert (Nodule) (Chert (Silica, SiO2)) — sedimentary

Chert (Nodule)

Chert (Silica, SiO2)

Quartz Vein in Host Rock (Crystalline Silicon Dioxide (SiO2) in Pelitic or Shaly Matrix) — metamorphic

Quartz Vein in Host Rock

Crystalline Silicon Dioxide (SiO2) in Pelitic or Shaly Matrix

Quartz Vein in Host Rock (Silicon Dioxide (SiO2) in matrix) — Mineral in Metamorphic/Igneous Host

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) in matrix

Mineral in Metamorphic/Igneous Host

Granite Pegmatite (Phaneritic Felsic Igneous Rock (Granite)) — igneous

Granite Pegmatite

Phaneritic Felsic Igneous Rock (Granite)

Marble (Recrystallized Calcite Rock (CaCO3)) — metamorphic

Marble

Recrystallized Calcite Rock (CaCO3)

Quartzite (Metamorphic rock (primarily SiO2)) — metamorphic

Quartzite

Metamorphic rock (primarily SiO2)

Crushed Limestone (Sedimentary Carbonate Rock (CaCO3)) — sedimentary

Crushed Limestone

Sedimentary Carbonate Rock (CaCO3)

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

Diamond

Diamond (Pure Carbon, C)

Gold-bearing Quartz (Auriferous Quartz (SiO2 with Native Gold inclusion)) — mineral

Gold-bearing Quartz

Auriferous Quartz (SiO2 with Native Gold inclusion)

Basalt (Basalt (SiO2 percentage between 45% and 52%)) — igneous

Basalt

Basalt (SiO2 percentage between 45% and 52%)

Jasper (Milky/Cream Variety) (Silicon Dioxide (SiO2) - variety of Chalcedony) — sedimentary (chemical/biological)

Jasper (Milky/Cream Variety)

Silicon Dioxide (SiO2) - variety of Chalcedony

sedimentary (chemical/biological)

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

Quartz Druze on Matrix

Silicon Dioxide (SiO2)