Rock Identifier

Category

Industrial Byproduct (Anthropogenic Rock)

Browse industrial byproduct (anthropogenic rock) specimens identified by the Rock Identifier community.

Learn about Industrial Byproduct (Anthropogenic Rock) in the encyclopedia

Rock Gypsum

Coral Rock

Asphalt Rock

Rock Salt

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Adirondack Garnet

Adirondack Garnet

Anorthosite

Cataclasite

Peridotite

Phosphorite

Gondite

Quartz Geode (Silicon Dioxide (SiO2) in a sedimentary or volcanic host) — mineral

Quartz Geode

Silicon Dioxide (SiO2) in a sedimentary or volcanic host

Geode (Unopened) (Siliceous Geode (SiO2)) — sedimentary

Geode (Unopened)

Siliceous Geode (SiO2)

Greywacke (River Pebble with Quartz Veins) (Greywacke (Indurated Sandstone); Veins: SiO2 (Quartz)) — sedimentary

Greywacke (River Pebble with Quartz Veins)

Greywacke (Indurated Sandstone); Veins: SiO2 (Quartz)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Not a geological specimen (N/A (man-made object)) — N/A

Not a geological specimen

N/A (man-made object)

Biotite (Black Mica) (Biotite - K(Mg,Fe)3AlSi3O10(F,OH)2) — mineral

Biotite (Black Mica)

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

Shale (Clastic sedimentary rock (primarily clay and silt minerals)) — sedimentary

Shale

Clastic sedimentary rock (primarily clay and silt minerals)

Fossil brachiopod shell (Brachiopoda indeterminate; possibly a strophomenid or spiriferid) — fossil

Fossil brachiopod shell

Brachiopoda indeterminate; possibly a strophomenid or spiriferid

Tumbled blue-green stone, likely chrysocolla or dyed chalcedony (Probable chrysocolla (hydrated copper aluminosilicate; variable composition), though appearance could also represent dyed chalcedony) — mineral

Tumbled blue-green stone, likely chrysocolla or dyed chalcedony

Probable chrysocolla (hydrated copper aluminosilicate; variable composition), though appearance could also represent dyed chalcedony

Fossilized shell or brachiopod (Likely a calcareous brachiopod or bivalve fossil; exact identification requires clearer detail and scale) — fossil

Fossilized shell or brachiopod

Likely a calcareous brachiopod or bivalve fossil; exact identification requires clearer detail and scale

Pink quartz (likely rose quartz) (Quartz, silicon dioxide (SiO₂), typically massive rose quartz colored by trace elements and microscopic inclusions) — mineral

Pink quartz (likely rose quartz)

Quartz, silicon dioxide (SiO₂), typically massive rose quartz colored by trace elements and microscopic inclusions

Tumbled amber (Amber (fossilized plant resin), chiefly polymerized diterpenoid resin) — gemstone

Tumbled amber

Amber (fossilized plant resin), chiefly polymerized diterpenoid resin

Polished amethyst pyramid (Amethyst, purple quartz (SiO₂)) — mineral

Polished amethyst pyramid

Amethyst, purple quartz (SiO₂)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Amethyst (Quartz (Silicon Dioxide, SiO2)) — mineral

Amethyst

Quartz (Silicon Dioxide, SiO2)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Black Tourmaline (Schorl (complex sodium iron aluminum borosilicate)) — mineral

Black Tourmaline

Schorl (complex sodium iron aluminum borosilicate)

Barite Rose (Barium Sulfate (BaSO4)) — mineral

Barite Rose

Barium Sulfate (BaSO4)

Almandine Garnet (Tumbled) (Fe3Al2(SiO4)3) — mineral

Almandine Garnet (Tumbled)

Fe3Al2(SiO4)3

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Yellow Calcite (Banded)

Calcium Carbonate (CaCO3)

Purple Garnet (Magnesium Aluminum Silicate (Pyrope-Almandine series) Mg3Al2(SiO4)3) — gemstone

Purple Garnet

Magnesium Aluminum Silicate (Pyrope-Almandine series) Mg3Al2(SiO4)3

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

River Stone (Limestone) (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

River Stone (Limestone)

Sedimentary Calcium Carbonate (CaCO3)

Sandstone (Ferruginous) (Arenite with Iron-Oxide Cement) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron-Oxide Cement

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

Tumbled Quartz Pebble

Silicon Dioxide (SiO2)

Quartzite Pebble (Quartzite (Silicon Dioxide, SiO2)) — metamorphic

Quartzite Pebble

Quartzite (Silicon Dioxide, SiO2)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

Diamond (Natural Diamond (Carbon, C)) — gemstone

Diamond

Natural Diamond (Carbon, C)

Yellow Topaz (Al2SiO4(F,OH)2) — gemstone

Yellow Topaz

Al2SiO4(F,OH)2

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

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

Rough Diamond

Diamond (Native Carbon, C)

Limestone Pebble (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone Pebble

Sedimentary Calcium Carbonate (CaCO3)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Garnet Schist (Almandine-bearing Mica Schist) — metamorphic

Garnet Schist

Almandine-bearing Mica Schist

Quartz (Gold-bearing Prospect) (Silicon Dioxide (SiO2)) — mineral

Quartz (Gold-bearing Prospect)

Silicon Dioxide (SiO2)

Cubic Zirconia (Cubic Zirconia (Zirconium Dioxide, ZrO2)) — mineral

Cubic Zirconia

Cubic Zirconia (Zirconium Dioxide, ZrO2)

Diamond (C (Carbon)) — gemstone

Diamond

C (Carbon)

Diamond (or Diamond Simulant) (Carbon (C)) — gemstone

Diamond (or Diamond Simulant)

Carbon (C)

Yellow Chalcedony (Silicon Dioxide (SiO2)) — mineral

Yellow Chalcedony

Silicon Dioxide (SiO2)

Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)