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

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

Hematite

Iron(III) oxide (Fe2O3)

Hematite (Iron Oxide (Fe2O3)) — mineral

Hematite

Iron Oxide (Fe2O3)

Hematite (Iron Oxide (Fe2O3)) — mineral

Hematite

Iron Oxide (Fe2O3)

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

Limonite / Ironstone

FeO(OH)·nH2O

Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)) — mineral

Fuchsite

K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)

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

Hematite

Iron(III) oxide (Fe2O3)

Goethite (Goethite (FeO(OH))) — mineral

Goethite

Goethite (FeO(OH))

Man-made Synthetic Material (Not a rock or mineral) (Polyester (Polyethylene terephthalate) / Faux Fur) — Synthetic / Textile

Man-made Synthetic Material (Not a rock or mineral)

Polyester (Polyethylene terephthalate) / Faux Fur

Synthetic / Textile

Quartzite (Quartzite (mostly SiO2)) — metamorphic

Quartzite

Quartzite (mostly SiO2)

Kyanite (Kyanite (Al2SiO5)) — Mineral

Kyanite

Kyanite (Al2SiO5)

Malachite (Copper Carbonate Hydroxide, Cu2CO3(OH)2) — mineral

Malachite

Copper Carbonate Hydroxide, Cu2CO3(OH)2

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

Stichtite (often found in Serpentinite) (Stichtite Mg6Cr2CO3(OH)16·4H2O) — Mineral

Stichtite (often found in Serpentinite)

Stichtite Mg6Cr2CO3(OH)16·4H2O

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

Hematite

Iron(III) oxide (Fe2O3)

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

Hematite

Iron(III) oxide (Fe2O3)

Hematite / Goethite (Iron Ore) (Iron Oxide (Fe2O3 / FeO(OH))) — mineral

Hematite / Goethite (Iron Ore)

Iron Oxide (Fe2O3 / FeO(OH))

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

Specular Hematite (Specularite)

Iron Oxide (Fe2O3)

Goethite (Goethite (FeO(OH))) — mineral

Goethite

Goethite (FeO(OH))

Turquoise color-bead and Hematite necklace (Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Hematite (Fe2O3)) — mineral

Turquoise color-bead and Hematite necklace

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

Hematite with Magnetite (Iron Oxide (Fe2O3)) — mineral

Hematite with Magnetite

Iron Oxide (Fe2O3)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Weathered Sandstone (Quartz Arenite / Clastic Sedimentary Rock) — sedimentary

Weathered Sandstone

Quartz Arenite / Clastic Sedimentary Rock

Pumice (Pumice (Volcanic Rock)) — igneous

Pumice

Pumice (Volcanic Rock)

Pumice (Pumice (Vesicular intermediate to felsic volcanic glass)) — igneous

Pumice

Pumice (Vesicular intermediate to felsic volcanic glass)

Yellow Aventurine (Yellow Quartz) (Silicon Dioxide (SiO2) with inclusions of Muscovite or Mica) — Mineral (variant of Quartz)

Yellow Aventurine (Yellow Quartz)

Silicon Dioxide (SiO2) with inclusions of Muscovite or Mica

Mineral (variant of Quartz)

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

Pumice

Pumice (a highly vesicular volcanic glass)

Coal (likely Anthracite) (Anthracite coal) — sedimentary

Coal (likely Anthracite)

Anthracite coal

Pumice (Pumice (Vesicular volcanic glass)) — igneous

Pumice

Pumice (Vesicular volcanic glass)

Quartzite (River Cobble) (Quartzite (mostly SiO2)) — metamorphic

Quartzite (River Cobble)

Quartzite (mostly SiO2)

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

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)

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)

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

Sandstone (Quartzose)

Arenite (SiO2 based)

Weathered vesicular volcanic rock (likely scoria or vesicular basalt) (Vesicular basalt/scoria; primarily plagioclase, pyroxene, olivine, and volcanic glass) — igneous

Weathered vesicular volcanic rock (likely scoria or vesicular basalt)

Vesicular basalt/scoria; primarily plagioclase, pyroxene, olivine, and volcanic glass

Sandstone (Sedimentary Rock (Quartz arenite/Arkose)) — sedimentary

Sandstone

Sedimentary Rock (Quartz arenite/Arkose)

Pumice (Pumice) — igneous

Pumice

Pumice

Pumice (Pumice (volcanic glass foam)) — igneous

Pumice

Pumice (volcanic glass foam)

Chevron Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Chevron Amethyst

Silicon Dioxide (SiO2) with iron impurities

Pumice (Pumice (Vesicular Rhyolite/Andesite)) — igneous

Pumice

Pumice (Vesicular Rhyolite/Andesite)