Rock Identifier

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Industrial Byproduct

Browse industrial byproduct specimens identified by the Rock Identifier community.

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Adirondack Garnet

Adirondack Garnet

Almandine Garnet

Almandine Garnet

Diatomaceous Earth

Diatomaceous Earth

Tripolite

Tripolite

Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

sedimentary
Quartz (Gravel Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (Gravel Pebble)

Silicon Dioxide (SiO2)

mineral
Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

mineral
Schist (Mica Schist) — metamorphic

Schist

Mica Schist

metamorphic
Quartzite with inclusions (Metamorphic Rock (Mainly SiO2)) — metamorphic

Quartzite with inclusions

Metamorphic Rock (Mainly SiO2)

metamorphic
Agate (Cryptocrystalline Quartz (SiO2)) — mineral

Agate

Cryptocrystalline Quartz (SiO2)

mineral
Garnetiferous Pegmatite (Pegmatite with Almandine Garnet and Muscovite) — igneous

Garnetiferous Pegmatite

Pegmatite with Almandine Garnet and Muscovite

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

Orange Calcite

Calcium Carbonate (CaCO3)

mineral
Serpentinite (Serpentinite (containing minerals of the Serpentine subgroup: Antigorite, Lizardite, and Chrysotile; formula (Mg,Fe)3Si2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (containing minerals of the Serpentine subgroup: Antigorite, Lizardite, and Chrysotile; formula (Mg,Fe)3Si2O5(OH)4)

metamorphic
Scoria (Red Lava Rock) (Scoria) — igneous

Scoria (Red Lava Rock)

Scoria

igneous
Sapphire (Corundum (Al2O3)) — mineral

Sapphire

Corundum (Al2O3)

mineral
Diamond (C (Carbon)) — mineral

Diamond

C (Carbon)

mineral
Native Copper Nugget (Native Copper (Cu)) — mineral

Native Copper Nugget

Native Copper (Cu)

mineral
Agate (Silicon Dioxide (SiO2)) — mineral

Agate

Silicon Dioxide (SiO2)

mineral
Quartzite (River Pebble) (Metamorphic rock consisting primarily of Quartz (SiO2)) — metamorphic

Quartzite (River Pebble)

Metamorphic rock consisting primarily of Quartz (SiO2)

metamorphic
Yellow Quartz / Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz / Quartz Pebble

Silicon Dioxide (SiO2)

mineral
Chalcedony (Agate) (Cryptocrystalline Quartz (SiO2)) — mineral

Chalcedony (Agate)

Cryptocrystalline Quartz (SiO2)

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

mineral
Concretionary Sandstone (Clastic Sedimentary Rock (Sandstone with secondary mineral cementation)) — sedimentary

Concretionary Sandstone

Clastic Sedimentary Rock (Sandstone with secondary mineral cementation)

sedimentary
Quartzite Pebble (Quartzite (mostly SiO2)) — metamorphic

Quartzite Pebble

Quartzite (mostly SiO2)

metamorphic
Agate (Slab) (Agate (Cryptocrystalline variety of Quartz, SiO2)) — Mineral

Agate (Slab)

Agate (Cryptocrystalline variety of Quartz, SiO2)

Mineral
Olivine (Peridotite) ((Mg, Fe)2SiO4 (Magnesium Iron Silicate)) — igneous

Olivine (Peridotite)

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

igneous
Yellow Quartz (Citrine/Quartzite Pebble) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine/Quartzite Pebble)

Silicon Dioxide (SiO2)

mineral
Ruby (Corundum (Al2O3 with Chromium traces)) — mineral

Ruby

Corundum (Al2O3 with Chromium traces)

mineral
Corundum (Ruby variety) (Aluminium oxide (Al2O3)) — mineral

Corundum (Ruby variety)

Aluminium oxide (Al2O3)

mineral
Quartzite pebble (Quartzite (SiO2)) — metamorphic

Quartzite pebble

Quartzite (SiO2)

metamorphic
Quartzite Pebble (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

metamorphic
Ferruginous Sandstone (Arenite with Iron-Oxide Cement (SiO2 with Fe2O3/FeO(OH))) — sedimentary

Ferruginous Sandstone

Arenite with Iron-Oxide Cement (SiO2 with Fe2O3/FeO(OH))

sedimentary
Almandine Garnet in Matrix (Almandine Garnet (Fe3Al2(SiO4)3)) — metamorphic

Almandine Garnet in Matrix

Almandine Garnet (Fe3Al2(SiO4)3)

metamorphic
Rough Blue Diamond (Carbon (C)) — mineral

Rough Blue Diamond

Carbon (C)

mineral
Fluorite (left), Sodalite (middle), Dumortierite/Tumbled Quartzite (right) (Calcium Fluoride (CaF2), Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2), Aluminum Borosilicate (Al7(BO3)(SiO4)3O3)) — mineral

Fluorite (left), Sodalite (middle), Dumortierite/Tumbled Quartzite (right)

Calcium Fluoride (CaF2), Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2), Aluminum Borosilicate (Al7(BO3)(SiO4)3O3)

mineral
Granite Pegmatite (Granitic Pegmatite (composition: SiO2 with KAlSi3O8)) — igneous

Granite Pegmatite

Granitic Pegmatite (composition: SiO2 with KAlSi3O8)

igneous
Pink Garnet in Matrix (Grossular or Almandine Garnet (X3Y2(SiO4)3)) — metamorphic

Pink Garnet in Matrix

Grossular or Almandine Garnet (X3Y2(SiO4)3)

metamorphic
Blue Star Sapphire (Corundum (Al2O3)) — mineral

Blue Star Sapphire

Corundum (Al2O3)

mineral
Quartz (Sand Grain size) (Silicon Dioxide (SiO2)) — mineral

Quartz (Sand Grain size)

Silicon Dioxide (SiO2)

mineral
Aragonite (Sputnik habit) (Aragonite (Calcium Carbonate, CaCO3)) — mineral

Aragonite (Sputnik habit)

Aragonite (Calcium Carbonate, CaCO3)

mineral
Chert (Ventifact) (Chert (Silicon Dioxide, SiO2)) — sedimentary

Chert (Ventifact)

Chert (Silicon Dioxide, SiO2)

sedimentary
Yellow Ochre / Limonite (Limonite (Hydrated Iron(III) Oxide-Hydroxide, FeO(OH)·nH2O)) — mineral

Yellow Ochre / Limonite

Limonite (Hydrated Iron(III) Oxide-Hydroxide, FeO(OH)·nH2O)

mineral
Quartz with inclusions (Silicon Dioxide (SiO2)) — mineral

Quartz with inclusions

Silicon Dioxide (SiO2)

mineral
Fluorite (likely Fluorite on Quartz/Matrix) (Calcium Fluoride (CaF2)) — mineral

Fluorite (likely Fluorite on Quartz/Matrix)

Calcium Fluoride (CaF2)

mineral
Kunzite (Pink Spodumene) (Spodumene, LiAl(SiO3)2) — mineral

Kunzite (Pink Spodumene)

Spodumene, LiAl(SiO3)2

mineral
White Topaz (Al2SiO4(F,OH)2 (Aluminium Silicate Fluoride Hydroxide)) — mineral

White Topaz

Al2SiO4(F,OH)2 (Aluminium Silicate Fluoride Hydroxide)

mineral