Rock Identifier

Category

Industrial By Product

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

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

Quartzite (River Cobble)

Quartzite (mostly SiO2)

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

Sandstone (with Lichen)

Arenite (primarily SiO2)

sedimentary
Goldstone (Brown) (Aventurine Glass (Silicon Dioxide infused with Copper crystals)) — mineraloid (man-made glass)

Goldstone (Brown)

Aventurine Glass (Silicon Dioxide infused with Copper crystals)

mineraloid (man-made glass)
Sandstone (Ferruginous) (Arenite (primarily SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Fe2O3 staining)

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

Hematite

Iron(III) oxide (Fe2O3)

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

Hematite (Tumbled)

Iron(III) oxide (Fe2O3)

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

Hematite

Iron(III) oxide (Fe2O3)

mineral
Zircon (Zirconium Silicate (ZrSiO₄)) — mineral

Zircon

Zirconium Silicate (ZrSiO₄)

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

Quartz (Quartzite Pebble)

Silicon Dioxide (SiO2)

mineral
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
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)

igneous
Dyed Agate Geode (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Dyed Agate Geode

Silicon Dioxide (SiO2) with artificial pigment

mineral
Pyrite with Limonite/Goethite Alteration (Pseudomorph) (Iron Sulfide (FeS2) transitioning to Hydrated Iron Oxides (FeO(OH)·nH2O)) — mineral

Pyrite with Limonite/Goethite Alteration (Pseudomorph)

Iron Sulfide (FeS2) transitioning to Hydrated Iron Oxides (FeO(OH)·nH2O)

mineral
Asphalt (Bituminous Pavement) (Bituminous mix (Aggregates with Bitumen binder)) — sedimentary

Asphalt (Bituminous Pavement)

Bituminous mix (Aggregates with Bitumen binder)

sedimentary
Sodalite (Sodalite (Na8(Al6Si6O24)Cl2)) — mineral

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

mineral
Pearl (Calcium Carbonate (mostly Aragonite), CaCO3 (with conchiolin)) — mineral

Pearl

Calcium Carbonate (mostly Aragonite), CaCO3 (with conchiolin)

mineral
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Chalk (Calcium Carbonate (CaCO3)) — sedimentary

Chalk

Calcium Carbonate (CaCO3)

sedimentary
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary
Pumice (Pumice (Vesicular volcanic glass)) — igneous

Pumice

Pumice (Vesicular volcanic glass)

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

Pumice

Pumice (Amorphous volcanic glass)

igneous
Marble (Recrystallized Calcite (CaCO3)) — metamorphic

Marble

Recrystallized Calcite (CaCO3)

metamorphic
Pumice (likely weathered/water-worn) (Vesicular volcanic glass) — igneous

Pumice (likely weathered/water-worn)

Vesicular volcanic glass

igneous
Pumice (Pumice (Vesicular volcanic glass / Rhyolite or Trachyte)) — igneous

Pumice

Pumice (Vesicular volcanic glass / Rhyolite or Trachyte)

igneous
Pumice (Vesicular volcanic glass) — igneous

Pumice

Vesicular volcanic glass

igneous
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)

mineral
Dragon Vein Agate (Dyed/Treated) (Agate (SiO2)) — mineral

Dragon Vein Agate (Dyed/Treated)

Agate (SiO2)

mineral
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

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

Milky Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Silicon Dioxide (SiO2)

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

Specular Hematite (Specularite)

Iron Oxide (Fe2O3)

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

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

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

Hematite

Iron(III) oxide (Fe2O3)

mineral
Pumice (Pumice (Vesicular volcanic glass)) — igneous

Pumice

Pumice (Vesicular volcanic glass)

igneous
Quartzite with Hematite staining (Quartzite (SiO2)) — metamorphic

Quartzite with Hematite staining

Quartzite (SiO2)

metamorphic
Limestone (Calcium carbonate (CaCO3)) — sedimentary

Limestone

Calcium carbonate (CaCO3)

sedimentary
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Pumice (Vesicular volcanic glass) — igneous

Pumice

Vesicular volcanic glass

igneous
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary
Kyanite (Kyanite (Al2SiO5)) — mineral

Kyanite

Kyanite (Al2SiO5)

mineral
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]

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

Pumice

Pumice (a highly vesicular amorphous silicate glass)

igneous