Rock Identifier

Category

Industrial Byproduct

Browse industrial byproduct specimens identified by the Rock Identifier community.

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

metamorphic
Quartz on Chlorite Schist (Chlorite Schist (Mg,Fe)3(Si,Al)4O10(OH)2 with Quartz (SiO2)) — metamorphic

Quartz on Chlorite Schist

Chlorite Schist (Mg,Fe)3(Si,Al)4O10(OH)2 with Quartz (SiO2)

metamorphic
Quartz Pebble (Silicon Dioxide (SiO2)) — Mineral / Sedimentary component

Quartz Pebble

Silicon Dioxide (SiO2)

Mineral / Sedimentary component
Schist (Mica Schist) — metamorphic

Schist

Mica Schist

metamorphic
Gold-bearing Quartz (Native Gold (Au) in Quartz (SiO2) matrix) — mineral

Gold-bearing Quartz

Native Gold (Au) in Quartz (SiO2) matrix

mineral
Moqui Marble (Iron Oxide Concretion) — sedimentary

Moqui Marble

Iron Oxide Concretion

sedimentary
Quartz with Mica inclusions (likely Iron-stained) (Silicon Dioxide (SiO2) with Phyllosilicates) — mineral

Quartz with Mica inclusions (likely Iron-stained)

Silicon Dioxide (SiO2) with Phyllosilicates

mineral
Garnet (Garnet Group (formula varies, e.g., Almasndine: Fe3Al2(SiO4)3)) — mineral

Garnet

Garnet Group (formula varies, e.g., Almasndine: Fe3Al2(SiO4)3)

mineral
Quartz Vein in Host Rock (clastic sediment) (Silicon Dioxide (SiO2) in matrix) — sedimentary

Quartz Vein in Host Rock (clastic sediment)

Silicon Dioxide (SiO2) in matrix

sedimentary
Basalt with Porphyritic Texture (Porphyritic Basalt) — igneous

Basalt with Porphyritic Texture

Porphyritic Basalt

igneous
Agate / Banded Chalcedony (Agate (Silicon Dioxide / SiO2)) — mineral

Agate / Banded Chalcedony

Agate (Silicon Dioxide / SiO2)

mineral
Diamond inlaid in Jewelry (Carbon (C)) — mineral

Diamond inlaid in Jewelry

Carbon (C)

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

Yellow Calcite

Calcium Carbonate (CaCO3)

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

Bull Quartz (Milky Quartz)

Quartz (Silicon Dioxide - SiO2)

mineral
Garnet Schist (Almandine-Mica Schist) — metamorphic

Garnet Schist

Almandine-Mica Schist

metamorphic
Diamond in Kimberlite (Kimberlite host rock with C (Carbon) inclusion) — igneous

Diamond in Kimberlite

Kimberlite host rock with C (Carbon) inclusion

igneous
Quartz (Iron-Stained Quartz Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-Stained Quartz Pebble)

Silicon Dioxide (SiO2)

mineral
Black Sapphire (Basaltic Blue Sapphire) (Corundum (Al2O3)) — mineral

Black Sapphire (Basaltic Blue Sapphire)

Corundum (Al2O3)

mineral
Anthracite Coal (Anthracite) — sedimentary

Anthracite Coal

Anthracite

sedimentary
Quartz Pebble (Silicon Dioxide (SiO2)) — Mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Mineral
Biotite Schist (with Garnet and Pyrite) (K(Mg,Fe)3AlSi3O10(OH,F)2 (Biotite focus)) — metamorphic

Biotite Schist (with Garnet and Pyrite)

K(Mg,Fe)3AlSi3O10(OH,F)2 (Biotite focus)

metamorphic
Milky Quartz Mushroom Carving (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz Mushroom Carving

Quartz (Silicon Dioxide, SiO2)

mineral
Sandstone (with Iron Staining) (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone (with Iron Staining)

Clastic Sedimentary Rock (primarily SiO2)

sedimentary
Pumice (Vesicular volcanic glass (primarily SiO2)) — igneous

Pumice

Vesicular volcanic glass (primarily SiO2)

igneous
Yellow Quartzite (River Pebble) (Quartzite (primarily SiO2)) — metamorphic

Yellow Quartzite (River Pebble)

Quartzite (primarily SiO2)

metamorphic
Schist (Mica Schist) — metamorphic

Schist

Mica Schist

metamorphic
Kimberlite (Kimberlite (Group I or II)) — igneous

Kimberlite

Kimberlite (Group I or II)

igneous
Diamond (Round Brilliant Cut) (Diamond (Pure Carbon, C)) — mineral

Diamond (Round Brilliant Cut)

Diamond (Pure Carbon, C)

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

Chert / Jasper

Silicon Dioxide (SiO2)

sedimentary
Sandstone (Sandstone (clastic sedimentary rock), primarily SiO2) — sedimentary

Sandstone

Sandstone (clastic sedimentary rock), primarily SiO2

sedimentary
Diamond (in Jewelry) (Carbon (C)) — mineral

Diamond (in Jewelry)

Carbon (C)

mineral
White Sapphire (Corundum (Al2O3)) — mineral

White Sapphire

Corundum (Al2O3)

mineral
Diamond (C (Carbon)) — mineral

Diamond

C (Carbon)

mineral
Quartzite (Gold/Tan River Cobble) (Quartzite (composed primarily of crystalline SiO2)) — metamorphic

Quartzite (Gold/Tan River Cobble)

Quartzite (composed primarily of crystalline SiO2)

metamorphic
Ruby (Corundum) (Aluminum Oxide (Al2O3) with Chromium traces) — mineral

Ruby (Corundum)

Aluminum Oxide (Al2O3) with Chromium traces

mineral
Bornite (Peacock Ore) (Bornite (Copper iron sulfide - Cu5FeS4)) — mineral

Bornite (Peacock Ore)

Bornite (Copper iron sulfide - Cu5FeS4)

mineral
Anthracite Coal (Anthracite (Carbon)) — sedimentary

Anthracite Coal

Anthracite (Carbon)

sedimentary
Red Jasper (Silicon Dioxide (SiO2) with Hematite inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

sedimentary
Moissanite (Silicon Carbide (SiC)) — mineral

Moissanite

Silicon Carbide (SiC)

mineral
Quartz with Muscovite Mica (SiO2 with KAl2(AlSi3O10)(OH)2) — mineral group

Quartz with Muscovite Mica

SiO2 with KAl2(AlSi3O10)(OH)2

mineral group
Red Sandstone (Arenite (with Iron Oxide pigmentation)) — Sedimentary

Red Sandstone

Arenite (with Iron Oxide pigmentation)

Sedimentary
Chert (often called Flint or Jasper) (Silicon Dioxide (SiO2)) — sedimentary

Chert (often called Flint or Jasper)

Silicon Dioxide (SiO2)

sedimentary