Rock Identifier

Category

Industrial Byproduct

Browse industrial byproduct specimens identified by the Rock Identifier community.

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Adirondack Garnet

Adirondack Garnet

Almandine Garnet

Almandine Garnet

Diatomaceous Earth

Diatomaceous Earth

Tripolite

Tripolite

Vesicular Basalt (Extrusive Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)) — igneous

Vesicular Basalt

Extrusive Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)

igneous
Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

metamorphic
Red Shale (Fissile Siliciclastic Sedimentary Rock) — sedimentary

Red Shale

Fissile Siliciclastic Sedimentary Rock

sedimentary
Pumice (Pumicite) — igneous

Pumice

Pumicite

igneous
Iron Ore (Limonite and Hematite) (Goethite/Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)) — mineral

Iron Ore (Limonite and Hematite)

Goethite/Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)

mineral
Basalt (Basalt (composition predominately plagioclase feldspar and pyroxene)) — igneous

Basalt

Basalt (composition predominately plagioclase feldspar and pyroxene)

igneous
Pumice (Pumice (Amorphous volcanic glass)) — igneous

Pumice

Pumice (Amorphous volcanic glass)

igneous
Granite (Granite (phaneritic intrusive felsic igneous rock)) — igneous

Granite

Granite (phaneritic intrusive felsic igneous rock)

igneous
Diamond (Diamond (C)) — mineral

Diamond

Diamond (C)

mineral
Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

sedimentary
Ferruginous Conglomerate (or Iron-Rich Concrete/Slag) (Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)) — sedimentary

Ferruginous Conglomerate (or Iron-Rich Concrete/Slag)

Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)

sedimentary
Red Garnet (Almandine-Pyrope series) (Garnet Group, Almandine (Fe3Al2(SiO4)3) or Pyrope (Mg3Al2(SiO4)3)) — mineral

Red Garnet (Almandine-Pyrope series)

Garnet Group, Almandine (Fe3Al2(SiO4)3) or Pyrope (Mg3Al2(SiO4)3)

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Diamond (or Clear Zircon/Sapphire) (Carbon (C)) — gemstone

Diamond (or Clear Zircon/Sapphire)

Carbon (C)

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

Black Tourmaline (Schorl)

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

mineral
Basalt River Stone (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt River Stone

Basalt (Aphanitic Mafic Igneous Rock)

igneous
Diamond (Baguette cut) (Carbon (C)) — gemstone

Diamond (Baguette cut)

Carbon (C)

gemstone
Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

gemstone
Limonite (Ironstone) (Limonite (FeO(OH)·nH2O)) — sedimentary

Limonite (Ironstone)

Limonite (FeO(OH)·nH2O)

sedimentary
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Yellow Sapphire (Raw) (Corundum (Al2O3)) — mineral

Yellow Sapphire (Raw)

Corundum (Al2O3)

mineral
Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

metamorphic
Garnet (Garnet group (X3Y2(SiO4)3)) — mineral

Garnet

Garnet group (X3Y2(SiO4)3)

mineral
Pegmatite (Granitic) (Granite Pegmatite) — igneous

Pegmatite (Granitic)

Granite Pegmatite

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

Black Tourmaline (Schorl)

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

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

Quartz Pebble

Silicon Dioxide (SiO2)

mineral
Red Garnet (Pyrope or Almandine) (Garnet Group (A3B2(SiO4)3)) — mineral

Red Garnet (Pyrope or Almandine)

Garnet Group (A3B2(SiO4)3)

mineral
Chalcedony (Cryptocrystalline Quartz (SiO2)) — mineral

Chalcedony

Cryptocrystalline Quartz (SiO2)

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

Rough Quartz

Silicon Dioxide (SiO2)

mineral
Piddock-bored Mudstone (Lutite (Siltstone or Mudstone) with Pholad borings) — sedimentary

Piddock-bored Mudstone

Lutite (Siltstone or Mudstone) with Pholad borings

sedimentary
Diamond (in jewelry) (Element Carbon (C)) — mineral

Diamond (in jewelry)

Element Carbon (C)

mineral
Iron-stained Quartz (with Limonite/Hematite) (Silicon Dioxide (SiO2) with Iron Oxide inclusions (FeO(OH) or Fe2O3)) — Mineral

Iron-stained Quartz (with Limonite/Hematite)

Silicon Dioxide (SiO2) with Iron Oxide inclusions (FeO(OH) or Fe2O3)

Mineral
Black Tourmaline (Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe3Al6(BO3)3Si6O18(OH)4) — mineral

Black Tourmaline

Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe3Al6(BO3)3Si6O18(OH)4

mineral
Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

metamorphic
Limestone Pebble (Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Limestone Pebble

Limestone (Calcium Carbonate, CaCO3)

sedimentary
Agate (Agatized Chalcedony (SiO2)) — mineral

Agate

Agatized Chalcedony (SiO2)

mineral
Olivine Peridotite (Peridotite (comprising Olivine (Mg,Fe)2SiO4 and Pyroxene)) — igneous

Olivine Peridotite

Peridotite (comprising Olivine (Mg,Fe)2SiO4 and Pyroxene)

igneous
Amygdaloidal Basalt (Amygdaloidal Basalt (Mafic Volcanic Rock)) — igneous

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic Volcanic Rock)

igneous
Diamond (in jewelry setting) (Diamond (C - Pure Carbon)) — mineral

Diamond (in jewelry setting)

Diamond (C - Pure Carbon)

mineral
Garnet (Pyrope-Almandine series) (Garnet Group, (Mg,Fe)3Al2Si3O12) — mineral

Garnet (Pyrope-Almandine series)

Garnet Group, (Mg,Fe)3Al2Si3O12

mineral
Black Tourmaline (Schorl) (Sodium Iron Aluminum Borosilicate (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)) — mineral

Black Tourmaline (Schorl)

Sodium Iron Aluminum Borosilicate (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)

mineral