Rock Identifier

Category

Industrial By Product

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

Red Jasper (Silicon Dioxide (SiO2) containing Iron Oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) containing Iron Oxide inclusions

sedimentary
Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

mineral
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary
Diamond (Native Carbon (C)) — mineral

Diamond

Native Carbon (C)

mineral
Diamond (Faceted) (Carbon (C)) — mineral

Diamond (Faceted)

Carbon (C)

mineral
Magnetite (in matrix) (Magnetite (Fe3O4)) — mineral

Magnetite (in matrix)

Magnetite (Fe3O4)

mineral
Basalt (Mafic Igneous Rock) — igneous

Basalt

Mafic Igneous Rock

igneous
Chert (Flint/Jasper variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint/Jasper variety)

Microcrystalline Quartz (SiO2)

sedimentary
Limonite / Ironstone (Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O) — mineral

Limonite / Ironstone

Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O

mineral
Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

mineral
Chert (Flint) (Silicon dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Chert (Flint)

Silicon dioxide (SiO2) - Cryptocrystalline Quartz

sedimentary
Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

mineral
Basalt with minor mineral crusting (Sideromelane / Extrusive Igneous Rock) — igneous

Basalt with minor mineral crusting

Sideromelane / Extrusive Igneous Rock

igneous
Chert (Flint) (Chert (SiO2)) — sedimentary

Chert (Flint)

Chert (SiO2)

sedimentary
Ruby (Corundum (Al2O3)) — mineral

Ruby

Corundum (Al2O3)

mineral
Pegmatite (Granitic Pegmatite) — igneous

Pegmatite

Granitic Pegmatite

igneous
Granite Pegmatite (Phaneritic Felsic Igneous Rock (Granite)) — igneous

Granite Pegmatite

Phaneritic Felsic Igneous Rock (Granite)

igneous
Diamond (Diamond (C)) — mineral

Diamond

Diamond (C)

mineral
Quartz (specifically a water-worn river pebble) (Silicon Dioxide (SiO2)) — Mineral

Quartz (specifically a water-worn river pebble)

Silicon Dioxide (SiO2)

Mineral
Quartzite (Metamorphic Quartzite (predominantly SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (predominantly SiO2)

metamorphic
Pumice (Vesicular volcanic glass) — igneous

Pumice

Vesicular volcanic glass

igneous
Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

mineral
Rough Sapphire (Corundum (Al2O3)) — mineral

Rough Sapphire

Corundum (Al2O3)

mineral
Olivine (Peridot) (Magnesium Iron Silicate ((Mg, Fe)2SiO4)) — mineral

Olivine (Peridot)

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

mineral
Magnetite (Iron Ore) (Magnetite (Fe3O4)) — mineral

Magnetite (Iron Ore)

Magnetite (Fe3O4)

mineral
Agate (Agate (Microcrystalline Quartz, SiO2)) — mineral

Agate

Agate (Microcrystalline Quartz, SiO2)

mineral
Rough Diamond (Native Carbon (C)) — mineral

Rough Diamond

Native Carbon (C)

mineral
Serpentinite (Serpentine rock (Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4) — metamorphic

Serpentinite

Serpentine rock (Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4

metamorphic
Citrine (Iron-stained Quartz) (Silicon Dioxide (SiO2)) — mineral

Citrine (Iron-stained Quartz)

Silicon Dioxide (SiO2)

mineral
Chert (specifically Red Chert or Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Red Chert or Jasper)

Microcrystalline Quartz (SiO2)

sedimentary
Quartz (Variety: Citrine or Tumbled Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Quartz (Variety: Citrine or Tumbled Chalcedony)

Silicon Dioxide (SiO2)

mineral
Aragonite Star Cluster (Aragonite (Sputnik habit) - CaesarCO3) — mineral

Aragonite Star Cluster

Aragonite (Sputnik habit) - CaesarCO3

mineral
Sandstone (Quartzose Sandstone) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzose Sandstone)

Arenite (primarily SiO2)

sedimentary
Chert (Arrowhead Debitage or Spall) (Silicon Dioxide (SiO₂)) — sedimentary

Chert (Arrowhead Debitage or Spall)

Silicon Dioxide (SiO₂)

sedimentary
Peridot (Olivine) (Magnesium Iron Silicate (Mg, Fe)2SiO4) — mineral

Peridot (Olivine)

Magnesium Iron Silicate (Mg, Fe)2SiO4

mineral
Chert (Nodule) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Nodule)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

sedimentary
Milky Quartz with Dendritic Inclusions (Silicon Dioxide (SiO2)) — mineral

Milky Quartz with Dendritic Inclusions

Silicon Dioxide (SiO2)

mineral
Chalcedony (specifically Agate or Common Opal variety) (Cryptocrystalline Silica (SiO2)) — mineral

Chalcedony (specifically Agate or Common Opal variety)

Cryptocrystalline Silica (SiO2)

mineral
Quartz Pebble (Silicon Dioxide (SiO2)) — Mineral / Sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Mineral / Sedimentary
Chert (specifically Flint or Novaculite variant) (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert (specifically Flint or Novaculite variant)

Chert (Microcrystalline Quartz, SiO2)

sedimentary
Red Sandstone (Arenite (Ferruginous Sandstone)) — sedimentary

Red Sandstone

Arenite (Ferruginous Sandstone)

sedimentary
Quartzite with Sandstone/Iron staining (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite with Sandstone/Iron staining

Metamorphic Quartzite (SiO2)

metamorphic