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

Seam Agate

Cat's Eye Obsidian

Perthite

Orange Tourmaline

Orange Tourmaline

Pink Agate

Purple Agate

Sea Glass (Man-made silicate glass) — gemstone

Sea Glass

Man-made silicate glass

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Sea Glass (often mistaken for Gemstones) (Amorphous Silica (SiO2) with trace additives) — mineraloid

Sea Glass (often mistaken for Gemstones)

Amorphous Silica (SiO2) with trace additives

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

Hematite

Iron(III) oxide (Fe2O3)

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (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)

Beige limestone tile (Limestone, primarily calcite (CaCO₃); exact variety cannot be determined from the image) — sedimentary

Beige limestone tile

Limestone, primarily calcite (CaCO₃); exact variety cannot be determined from the image

Brown iron-rich rock, likely limonite/goethite-bearing stone (Limonite (hydrated iron oxides; commonly goethite, FeO(OH), with hematite)) — mineral

Brown iron-rich rock, likely limonite/goethite-bearing stone

Limonite (hydrated iron oxides; commonly goethite, FeO(OH), with hematite)

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

Hematite

Iron(III) oxide (Fe2O3)

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

Hematite (Iron Ore Boulder)

Hematite (Fe2O3)

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

Hematite

Iron(III) oxide (Fe2O3)

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

Hematite

Iron(III) oxide (Fe2O3)

Zircon (Zirconium Silicate (ZrSiO₄)) — mineral

Zircon

Zirconium Silicate (ZrSiO₄)

Sandstone (Quartzose) (Arenite (SiO2 based)) — sedimentary

Sandstone (Quartzose)

Arenite (SiO2 based)

Tumbled dark stone, likely basalt or basaltic rock (Fine-grained mafic volcanic rock; commonly basalt, composed chiefly of plagioclase and pyroxene with possible olivine and iron oxides) — igneous

Tumbled dark stone, likely basalt or basaltic rock

Fine-grained mafic volcanic rock; commonly basalt, composed chiefly of plagioclase and pyroxene with possible olivine and iron oxides

Tumbled quartz-rich pebble (Likely quartzite or quartz-rich sandstone; predominantly SiO₂) — igneous

Tumbled quartz-rich pebble

Likely quartzite or quartz-rich sandstone; predominantly SiO₂

Sandstone (lithic wacke/conglomerate mix) (Clastic Sedimentary Rock (SiO2 with lithic fragments)) — sedimentary

Sandstone (lithic wacke/conglomerate mix)

Clastic Sedimentary Rock (SiO2 with lithic fragments)

Quartz with Tourmaline and Iron Staining (Silicon Dioxide (SiO2) with Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)) — igneous

Quartz with Tourmaline and Iron Staining

Silicon Dioxide (SiO2) with Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)

Pumice (Pumice, a highly vesicular volcanic glass, commonly rhyolitic to dacitic in composition) — igneous

Pumice

Pumice, a highly vesicular volcanic glass, commonly rhyolitic to dacitic in composition

Vesicular scoria (oxidized basaltic scoria) (Scoria; vesicular mafic volcanic rock, typically composed mainly of plagioclase, pyroxene, and iron-rich glass/oxides) — igneous

Vesicular scoria (oxidized basaltic scoria)

Scoria; vesicular mafic volcanic rock, typically composed mainly of plagioclase, pyroxene, and iron-rich glass/oxides

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

Himalayan Pink Salt

Halite (NaCl) with iron oxide inclusions

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)

Pumice (Highly vesicular volcanic glass, typically rhyolitic to andesitic composition; mainly silicate glass with feldspar, quartz, and minor pyroxene/amphibole.) — igneous

Pumice

Highly vesicular volcanic glass, typically rhyolitic to andesitic composition; mainly silicate glass with feldspar, quartz, and minor pyroxene/amphibole.

Mixed polished river stones (Likely quartz, quartzite, chert/jasper, and possibly limestone or marble) — mineral

Mixed polished river stones

Likely quartz, quartzite, chert/jasper, and possibly limestone or marble

Pumice (Pumice (Volcanic Rock)) — igneous

Pumice

Pumice (Volcanic Rock)

Scoria (Extrusive Igneous Rock) — igneous

Scoria

Extrusive Igneous Rock

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

Pumice

Pumice (Volcanic Rock / Glass Froth)

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)

Generic Pebble / Rock Fragment (Lithic fragment / Weathered rock pebble) — sedimentary

Generic Pebble / Rock Fragment

Lithic fragment / Weathered rock pebble

Sandstone (Ferruginous) (Arenite (primarily SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Fe2O3 staining)

Milky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Milky quartz

Quartz (silicon dioxide, SiO₂)

Fossilized bivalve shell (small cockle-type shell) (Bivalvia; exact species cannot be determined from the image) — fossil

Fossilized bivalve shell (small cockle-type shell)

Bivalvia; exact species cannot be determined from the image