Rock Identifier

Category

Industrial By Product

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

Learn about Industrial By Product in the encyclopedia

Adirondack Garnet

Adirondack Garnet

Brazilian Agate

Brazilian Agate

Almandine Garnet

Almandine Garnet

Tripolite

Diatomaceous Earth

Vanadium Tourmaline

Vanadium Tourmaline

Cat's Eye Obsidian

Seam Agate

Perthite

Orange Tourmaline

Orange Tourmaline

Pink Agate

Purple Agate

Pumice (Pumice (Volcanic Rock / Glass Froth)) — igneous

Pumice

Pumice (Volcanic Rock / Glass Froth)

Blue Kyanite (Kyanite (Al2SiO5)) — mineral

Blue Kyanite

Kyanite (Al2SiO5)

Raw Pink Salt (Himalayan Salt) (Halite (NaCl with trace minerals)) — mineral

Raw Pink Salt (Himalayan Salt)

Halite (NaCl with trace minerals)

Himalayan Pink Salt (Halite (NaCl) with iron oxide inclusions) — mineral

Himalayan Pink Salt

Halite (NaCl) with iron oxide inclusions

Pumice (Pumice (Vesicular volcanic glass)) — igneous

Pumice

Pumice (Vesicular volcanic glass)

Pumice (Volcanic Rock) (Vesicular volcanic rock (composed largely of amorphous volcanic glass)) — igneous

Pumice (Volcanic Rock)

Vesicular volcanic rock (composed largely of amorphous volcanic glass)

Pumice (or Volcanic Scoria) (Vesicular Rhyolite or Vesicular Basalt) — igneous

Pumice (or Volcanic Scoria)

Vesicular Rhyolite or Vesicular Basalt

Pumice (Pumice (a highly vesicular felsic volcanic rock)) — igneous

Pumice

Pumice (a highly vesicular felsic volcanic rock)

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

Pumice

Pumice (a highly vesicular volcanic rock)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Limonite/Goethite on Shale (Hydrous ferric oxides (FeO(OH)·nH2O) often associated with argillaceous rock) — sedimentary

Limonite/Goethite on Shale

Hydrous ferric oxides (FeO(OH)·nH2O) often associated with argillaceous rock

Turquoise and Hematite (Turquoise: CuAl6(PO4)4(OH)8·4H2O; Hematite: Fe2O3) — mineral

Turquoise and Hematite

Turquoise: CuAl6(PO4)4(OH)8·4H2O; Hematite: Fe2O3

Specular Hematite (Specularite (Iron Oxide, Fe2O3)) — mineral

Specular Hematite

Specularite (Iron Oxide, Fe2O3)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Hematite (Iron Ore) (Hematite (Fe2O3)) — mineral

Hematite (Iron Ore)

Hematite (Fe2O3)

Lepidolite (Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)) — mineral

Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Weathered granite (Granite; interlocking quartz–feldspar–mica aggregate) — igneous

Weathered granite

Granite; interlocking quartz–feldspar–mica aggregate

Sandstone / Weathered Chert (Silicon Dioxide (SiO2) / Quartz-rich Clastic Rock) — sedimentary

Sandstone / Weathered Chert

Silicon Dioxide (SiO2) / Quartz-rich Clastic Rock

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Tumbled black stone, likely basalt or black jasper (Probably basalt (fine-grained plagioclase–pyroxene rock); exact identification is uncertain from the image) — igneous

Tumbled black stone, likely basalt or black jasper

Probably basalt (fine-grained plagioclase–pyroxene rock); exact identification is uncertain from the image

Common Gravel / Pebble (Lithified rock fragment / Detrital sediment) — sedimentary

Common Gravel / Pebble

Lithified rock fragment / Detrital sediment

Iron-rich meteorite candidate (Undetermined meteoritic iron–nickel material; possibly an ordinary chondrite or weathered iron meteorite) — meteorite

Iron-rich meteorite candidate

Undetermined meteoritic iron–nickel material; possibly an ordinary chondrite or weathered iron meteorite

Sea Glass (Man-made silicate glass (Amorphous silicon dioxide)) — mineral

Sea Glass

Man-made silicate glass (Amorphous silicon dioxide)

Sea Glass (Amorphous Silica (Glass) SiO2) — Mineraloid (Man-made origin)

Sea Glass

Amorphous Silica (Glass) SiO2

Mineraloid (Man-made origin)

Sandstone (with Lichen) (Arenite (primarily SiO2)) — sedimentary

Sandstone (with Lichen)

Arenite (primarily SiO2)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Hematite (Tumbled) (Iron(III) oxide (Fe2O3)) — mineral

Hematite (Tumbled)

Iron(III) oxide (Fe2O3)

River Stone (likely Siltstone or fine-grained Basalt) (Clastic Sedimentary (Siltstone) or Mafic Igneous (Basalt)) — sedimentary or igneous

River Stone (likely Siltstone or fine-grained Basalt)

Clastic Sedimentary (Siltstone) or Mafic Igneous (Basalt)

sedimentary or igneous

Tumbled milky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Tumbled milky quartz

Quartz (silicon dioxide, SiO₂)

Pumice (Pumice (Volcanic Glass)) — igneous

Pumice

Pumice (Volcanic Glass)

Quartzite (Metamorphic Quartzite) — metamorphic

Quartzite

Metamorphic Quartzite

Quartzite (Quartzite (Mostly SiO2)) — metamorphic

Quartzite

Quartzite (Mostly SiO2)

Pumice (Pumicite) — igneous

Pumice

Pumicite

Pumice (Pumice (a highly vesicular amorphous silicate glass)) — igneous

Pumice

Pumice (a highly vesicular amorphous silicate glass)

Kyanite (Kyanite (Al2SiO5)) — mineral

Kyanite

Kyanite (Al2SiO5)

Biotite Schist (Biotite-rich Schist [K(Mg,Fe)3AlSi3O10(F,OH)2]) — metamorphic

Biotite Schist

Biotite-rich Schist [K(Mg,Fe)3AlSi3O10(F,OH)2]

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)