Rock Identifier

Category

Industrial By Product

Browse industrial by product specimens identified by the Rock Identifier community.

Pink Quartzite (Quartzite (primarily SiO2)) — metamorphic

Pink Quartzite

Quartzite (primarily SiO2)

Jasper (Iron-stained Chalcedony) (SiO2 with Fe2O3 (Iron Oxide) impurities) — Sedimentary / Mineral (Silica)

Jasper (Iron-stained Chalcedony)

SiO2 with Fe2O3 (Iron Oxide) impurities

Sedimentary / Mineral (Silica)

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

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Banded Iron Formation (BIF) / Tiger Iron variety (Banded Iron Formation (composed primarily of Magnetite Fe3O4, Hematite Fe2O3, and Chert/Quartz SiO2)) — sedimentary

Banded Iron Formation (BIF) / Tiger Iron variety

Banded Iron Formation (composed primarily of Magnetite Fe3O4, Hematite Fe2O3, and Chert/Quartz SiO2)

Bumble Bee Jasper (Calcite-bearing Volcanic Tuff (not a true Jasper)) — sedimentary

Bumble Bee Jasper

Calcite-bearing Volcanic Tuff (not a true Jasper)

Anthracite Coal (Anthracite) — metamorphic

Anthracite Coal

Anthracite

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

Black Tourmaline

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

Ferruginous Quartz (Quartz with Iron Oxide inclusions (SiO2 + Fe2O3)) — mineral

Ferruginous Quartz

Quartz with Iron Oxide inclusions (SiO2 + Fe2O3)

Granitic Pegmatite (Granite Pegmatite (typically containing Quartz SiO2, Feldspar KAlSi3O8, and Muscovite)) — Igneous

Granitic Pegmatite

Granite Pegmatite (typically containing Quartz SiO2, Feldspar KAlSi3O8, and Muscovite)

Chert (specifically Red Chert/Jasper nodule) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Red Chert/Jasper nodule)

Microcrystalline Quartz (SiO2)

Vesicular Basalt (Extrusive mafic igneous rock (primarily Plagioclase feldspar and Pyroxene)) — igneous

Vesicular Basalt

Extrusive mafic igneous rock (primarily Plagioclase feldspar and Pyroxene)

Pink Tourmaline (Rubellite) (Elbaite - Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3OH) — mineral

Pink Tourmaline (Rubellite)

Elbaite - Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3OH

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Diamond (Natural Carbon (C)) — mineral

Diamond

Natural Carbon (C)

Marble (Recrystallized Calcite (CaCO3) Rock) — metamorphic

Marble

Recrystallized Calcite (CaCO3) Rock

Olivine (Peridot when gem-quality) (Olivine Group (Magnesium Iron Silicate, (Mg,Fe)2SiO4)) — mineral

Olivine (Peridot when gem-quality)

Olivine Group (Magnesium Iron Silicate, (Mg,Fe)2SiO4)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Red Sandstone (Arenite (primarily Quartz with Hematite cement)) — sedimentary

Red Sandstone

Arenite (primarily Quartz with Hematite cement)

Emerald (Tumbled Beryl) (Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities) — mineral

Emerald (Tumbled Beryl)

Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities

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

Banded Agate (Pink Chalcedony) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Banded Agate (Pink Chalcedony)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

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

White Chalcedony (Agate)

Silicon Dioxide (SiO2)

Native Copper (Native Copper (Cu)) — mineral

Native Copper

Native Copper (Cu)

Sodalite (Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)) — mineral

Sodalite

Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)

Rose Quartz with Hematite inclusions (Silicon Dioxide (SiO2) with Fe2O3 inclusions) — mineral

Rose Quartz with Hematite inclusions

Silicon Dioxide (SiO2) with Fe2O3 inclusions

Granite Pebble (Granite) — igneous

Granite Pebble

Granite

Agate (Silicon Dioxide (SiO2) - Chalcedony variety) — mineral

Agate

Silicon Dioxide (SiO2) - Chalcedony variety

Green Quartzite (Aventurine-like) (Quartzite (primarily SiO2 with chromium-rich mica or chlorite inclusions)) — metamorphic

Green Quartzite (Aventurine-like)

Quartzite (primarily SiO2 with chromium-rich mica or chlorite inclusions)

Basalt (Water-worn Pebble) (Basalt (Mafic volcanic rock)) — Igneous

Basalt (Water-worn Pebble)

Basalt (Mafic volcanic rock)

Limonite and Goethite (Limonite (hydrated iron(III) oxide-hydroxide) and Goethite (α-FeO(OH))) — mineral

Limonite and Goethite

Limonite (hydrated iron(III) oxide-hydroxide) and Goethite (α-FeO(OH))

Blue Sapphire (Corundum (Al2O3) with traces of Iron and Titanium) — mineral

Blue Sapphire

Corundum (Al2O3) with traces of Iron and Titanium

Anthracite (Anthracite (Carbon-rich metamorphic coal)) — metamorphic

Anthracite

Anthracite (Carbon-rich metamorphic coal)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Red Jasper (Jasper (SiO2) with Hematite (Fe2O3) inclusions) — sedimentary

Red Jasper

Jasper (SiO2) with Hematite (Fe2O3) inclusions

Basalt (Basalt (Mafic igneous rock)) — igneous

Basalt

Basalt (Mafic igneous rock)

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

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

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Jasper (Silicon dioxide (SiO2) with iron oxide and clay inclusions) — sedimentary

Jasper

Silicon dioxide (SiO2) with iron oxide and clay inclusions

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

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

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

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)