Rock Identifier

Category

Industrial Byproduct (Anthropogenic Rock Like Material)

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

Learn about Industrial Byproduct (Anthropogenic Rock Like Material) in the encyclopedia

Calc-Silicate Rock

Calc-Silicate Rock

Argillite

Dunite

Porcelanite

Felsite

Granulite

Metarhyolite

Limonite

Orbicular Granite

Orbicular Granite

Bauxite

Granodiorite

Metabasalt

Chert (specifically a nodule with Chalcendony/Agate banding) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically a nodule with Chalcendony/Agate banding)

Microcrystalline Quartz (SiO2)

Chert (Common Opal/Chalcedony mixture) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Common Opal/Chalcedony mixture)

Silicon Dioxide (SiO2)

Scoria (Vesicular Basalt) (Extrusive mafic igneous rock (high vesicularity)) — igneous

Scoria (Vesicular Basalt)

Extrusive mafic igneous rock (high vesicularity)

Sandstone (Banded) (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone (Banded)

Clastic Sedimentary Rock (primarily SiO2)

Mica Schist (Mica Schist (KAl2(AlSi3O10)(OH)2 - Muscovite component)) — metamorphic

Mica Schist

Mica Schist (KAl2(AlSi3O10)(OH)2 - Muscovite component)

Bauxite (Bauxite (mixture of Hydrous Aluminum Oxides)) — sedimentary

Bauxite

Bauxite (mixture of Hydrous Aluminum Oxides)

Chert (Jasper) (Silicon dioxide (SiO2)) — sedimentary

Chert (Jasper)

Silicon dioxide (SiO2)

Rhyolitic Tuff (Breccia Type) (Rhyolitic Pyroclastic Rock (Mixed Silicates including Quartz, Feldspar, and Volcanic Glass)) — igneous

Rhyolitic Tuff (Breccia Type)

Rhyolitic Pyroclastic Rock (Mixed Silicates including Quartz, Feldspar, and Volcanic Glass)

Travertine (Calcareous Tufa / Travertine (CaCO3)) — sedimentary

Travertine

Calcareous Tufa / Travertine (CaCO3)

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Fossilized Bone Fragment (Permineralized Vertebrate Fossil (Hydroxyapatite replaced by Minerals)) — sedimentary

Fossilized Bone Fragment

Permineralized Vertebrate Fossil (Hydroxyapatite replaced by Minerals)

Chert (specifically a weathered Chert nodule or fragment) (Chert; Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically a weathered Chert nodule or fragment)

Chert; Microcrystalline or Cryptocrystalline Quartz (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

Chert (Jasper variation) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper variation)

Silicon Dioxide (SiO2)

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

Obsidian (Obsidian (principally SiO2)) — igneous

Obsidian

Obsidian (principally SiO2)

Granite (Granite (composed of Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Granite (composed of Quartz, Alkali Feldspar, and Plagioclase)

Blue-green copper mineral specimen, likely chrysocolla-bearing rock (Chrysocolla, hydrated copper phyllosilicate: approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O; possibly mixed with malachite or chrysocolla matrix) — mineral

Blue-green copper mineral specimen, likely chrysocolla-bearing rock

Chrysocolla, hydrated copper phyllosilicate: approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O; possibly mixed with malachite or chrysocolla matrix

Quartzite (Metamorphic quartz rock (SiO2)) — metamorphic

Quartzite

Metamorphic quartz rock (SiO2)

Porphyry (Porphyritic Basalt / Porphyritic Andesite) (Porphyritic Igneous Rock) — igneous

Porphyry (Porphyritic Basalt / Porphyritic Andesite)

Porphyritic Igneous Rock

Amygdaloidal Basalt with Agate/Quartz Infill (Basalt with Secondary Silicate Mineralization (SiO2)) — igneous

Amygdaloidal Basalt with Agate/Quartz Infill

Basalt with Secondary Silicate Mineralization (SiO2)

Thunderegg (specifically a Jasper/Agate-filled Geode nodule) (Silicon Dioxide (SiO2) within Rhyolitic Matrix) — igneous

Thunderegg (specifically a Jasper/Agate-filled Geode nodule)

Silicon Dioxide (SiO2) within Rhyolitic Matrix

Sandstone (likely Fossiliferous) (Arenite / Sedimentum arenaceum) — sedimentary

Sandstone (likely Fossiliferous)

Arenite / Sedimentum arenaceum

Sandstone (Ferruginous) (Arenite (composed primarily of SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (Ferruginous)

Arenite (composed primarily of SiO2 with Fe2O3 staining)

Fossiliferous Limestone (Fossiliferous Calclutite / Bio-calcarenite (CaCO3)) — sedimentary

Fossiliferous Limestone

Fossiliferous Calclutite / Bio-calcarenite (CaCO3)

Sandstone (Quartz Arenite) (Sandstone (Chemical formula: primarily SiO2)) — sedimentary

Sandstone (Quartz Arenite)

Sandstone (Chemical formula: primarily SiO2)

Red Sandstone (Arenite (Ferruginous Sandstone)) — sedimentary

Red Sandstone

Arenite (Ferruginous Sandstone)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Anthracite Coal (Anthracite (high-rank coal)) — metamorphic

Anthracite Coal

Anthracite (high-rank coal)

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)

Banded Agate (specifically Sardonyx or Red Agate) (Silicon Dioxide (SiO2)) — mineral

Banded Agate (specifically Sardonyx or Red Agate)

Silicon Dioxide (SiO2)

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Chert (specifically Flint) (Silicon dioxide (SiO2)) — sedimentary

Chert (specifically Flint)

Silicon dioxide (SiO2)

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

Diamond (in Jewelry)

Diamond (Carbon, C)

Garden Pebble (Quartzite or Limestone fragment) (Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3) fragment) — sedimentary

Garden Pebble (Quartzite or Limestone fragment)

Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3) fragment

Chalcedony (Moonstone variant or White Agate) (Silicon Dioxide (SiO₂)) — mineral

Chalcedony (Moonstone variant or White Agate)

Silicon Dioxide (SiO₂)

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

Chert (Chalcedony/Flint)

Microcrystalline Quartz (SiO2)

Red Sandstone (Arkose) (Clastic Sedimentary Rock (Lithic Arkose)) — sedimentary

Red Sandstone (Arkose)

Clastic Sedimentary Rock (Lithic Arkose)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Polished opal-like chalcedony (Cryptocrystalline silica, SiO₂; likely common opal or pale chalcedony, with identification limited by the photograph) — gemstone

Polished opal-like chalcedony

Cryptocrystalline silica, SiO₂; likely common opal or pale chalcedony, with identification limited by the photograph

Sandstone (Ferruginous) (Arenite (with Iron Oxides)) — sedimentary

Sandstone (Ferruginous)

Arenite (with Iron Oxides)