Rock Identifier

Category

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

White Marble (Recrystallized Calcite (CaCO3)) — metamorphic

White Marble

Recrystallized Calcite (CaCO3)

metamorphic
Rough Diamond (Carbon (C)) — mineral

Rough Diamond

Carbon (C)

mineral
Quartz (Iron-stained or Orange Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained or Orange Quartz)

Silicon Dioxide (SiO2)

mineral
Quartzite cobblestone (Quartzite (primarily SiO2)) — metamorphic

Quartzite cobblestone

Quartzite (primarily SiO2)

metamorphic
Beryl (likely Pink/Morganite variety) (Beryllium aluminum silicate (Be3Al2Si6O18)) — mineral

Beryl (likely Pink/Morganite variety)

Beryllium aluminum silicate (Be3Al2Si6O18)

mineral
Mica Schist with Garnet (Garnet-Mica Schist) — metamorphic

Mica Schist with Garnet

Garnet-Mica Schist

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

Hematite

Hematite (Iron(III) oxide, Fe2O3)

mineral
Chalcedony Geode Part (Agate/Quartz) (Silicon Dioxide (SiO2)) — mineral

Chalcedony Geode Part (Agate/Quartz)

Silicon Dioxide (SiO2)

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

Quartz Geode (Cracked)

Silicon Dioxide (SiO2)

mineral
Garnet in Matrix (likely Almandine Garnet) (Almandine (Fe3Al2(SiO4)3)) — metamorphic

Garnet in Matrix (likely Almandine Garnet)

Almandine (Fe3Al2(SiO4)3)

metamorphic
Pegmatite (Granitic Pegmatite) — igneous

Pegmatite

Granitic Pegmatite

igneous
Sandstone (Ferruginous) (Arenite with Iron Oxide cement) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron Oxide cement

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

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

metamorphic
Eclogite (Eclogite (composed primarily of Omphacite and Pyrope Garnet)) — metamorphic

Eclogite

Eclogite (composed primarily of Omphacite and Pyrope Garnet)

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

Quartzite Pebble

Quartzite (mostly SiO2)

metamorphic
Schist (Mica Schist) — metamorphic

Schist

Mica Schist

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

Peridot (Olivine)

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

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

sedimentary
Granitoid (Pegmatitic Granite) (Granitoid with dominant Potassium Feldspar and Quartz) — igneous

Granitoid (Pegmatitic Granite)

Granitoid with dominant Potassium Feldspar and Quartz

igneous
Mica Schist (Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)) — metamorphic

Mica Schist

Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)

metamorphic
Quartz (Water-worn pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (Water-worn pebble)

Silicon Dioxide (SiO2)

mineral
Sandstone (Arenite) — sedimentary

Sandstone

Arenite

sedimentary
Yellow Jasper (Silicon Dioxide (SiO2)) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2)

sedimentary
Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

mineral
Agate Nodule / Weathered Chert (SiO2 (Silicon Dioxide - Microcrystalline Quartz)) — Sedimentary / Mineral

Agate Nodule / Weathered Chert

SiO2 (Silicon Dioxide - Microcrystalline Quartz)

Sedimentary / Mineral
Diamond (Diamond (pure carbon, C)) — mineral

Diamond

Diamond (pure carbon, C)

mineral
Schist (Mica Schist) — metamorphic

Schist

Mica Schist

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

Orange Calcite

Calcium Carbonate (CaCO3)

mineral
Jasper (Jasper / Silicon Dioxide (SiO₂)) — sedimentary

Jasper

Jasper / Silicon Dioxide (SiO₂)

sedimentary
Granitic Pegmatite (River Rock specimen) (Granite / Pegmatite (composed of SiO2, KAlSi3O8, and NaAlSi3O8)) — igneous

Granitic Pegmatite (River Rock specimen)

Granite / Pegmatite (composed of SiO2, KAlSi3O8, and NaAlSi3O8)

igneous
Garnet in Schist (Almandine Garnet in Mica-Schist (Fe3Al2(SiO4)3)) — metamorphic

Garnet in Schist

Almandine Garnet in Mica-Schist (Fe3Al2(SiO4)3)

metamorphic
Yellow Jasper (Silicon Dioxide (SiO2) with iron inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron inclusions

sedimentary
Schist (Mica Schist) — metamorphic

Schist

Mica Schist

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

Almandine Garnet in Matrix

Almandine, Fe3Al2(SiO4)3

metamorphic
Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

mineral
Garnet and Quartz (Pyrope or Almandine (Red Garnets) and Quartz (Center Stone)) — mineral

Garnet and Quartz

Pyrope or Almandine (Red Garnets) and Quartz (Center Stone)

mineral
Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

sedimentary
Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

mineral
Quartzite (Quartzite (mostly SiO2)) — metamorphic

Quartzite

Quartzite (mostly SiO2)

metamorphic
Quartz Geode (with possible Manganese or Goethite coating) (Silicon Dioxide (SiO2)) — mineral

Quartz Geode (with possible Manganese or Goethite coating)

Silicon Dioxide (SiO2)

mineral
Sapphire (Rough Corundum) (Corundum (Aluminum Oxide, Al2O3)) — mineral

Sapphire (Rough Corundum)

Corundum (Aluminum Oxide, Al2O3)

mineral
Limestone (Weathered) (Sedimentary Carbonate Rock (CaCO3)) — sedimentary

Limestone (Weathered)

Sedimentary Carbonate Rock (CaCO3)

sedimentary