Rock Identifier

Category

Industrial Byproduct (Anthropogenic Material)

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

Learn about Industrial Byproduct (Anthropogenic Material) in the encyclopedia

Adirondack Garnet

Adirondack Garnet

Peat

Almandine Garnet

Almandine Garnet

Dunite

Limonite

Shell Opal

Madagascar Opal

Lavender Obsidian

Electric Blue Obsidian

Orange Obsidian

Diamond

Metarhyolite

Likely obsidian (black volcanic glass) (Obsidian; predominantly rhyolitic volcanic glass, often ~70–75% SiO₂) — igneous

Likely obsidian (black volcanic glass)

Obsidian; predominantly rhyolitic volcanic glass, often ~70–75% SiO₂

Pyrite (Iron Pyrite (FeS₂)) — Mineral

Pyrite

Iron Pyrite (FeS₂)

Opalite (Synthetic Opalite (Man-made glass)) — mineral

Opalite

Synthetic Opalite (Man-made glass)

Aura Quartz (Pink/Rose Aura Quartz) (Silicon Dioxide (SiO2) bonded with Platinum and/or Silver) — mineral

Aura Quartz (Pink/Rose Aura Quartz)

Silicon Dioxide (SiO2) bonded with Platinum and/or Silver

Quartz (Engineered Stone Countertop) (Silicon Dioxide (SiO2) within a resin matrix) — igneous

Quartz (Engineered Stone Countertop)

Silicon Dioxide (SiO2) within a resin matrix

Sandstone (Quartz Arenite / Sedimentary Rock) — sedimentary

Sandstone

Quartz Arenite / Sedimentary Rock

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Jasper with Quartz Veining (Microcrystalline quartz (SiO2) with iron oxide impurities) — sedimentary

Jasper with Quartz Veining

Microcrystalline quartz (SiO2) with iron oxide impurities

Sandstone Pebble (Sedimentary Clastic Rock (Quartz Arenite)) — sedimentary

Sandstone Pebble

Sedimentary Clastic Rock (Quartz Arenite)

Sandstone (Sedimentary Rock (Quartz arenite or arkose)) — sedimentary

Sandstone

Sedimentary Rock (Quartz arenite or arkose)

Sandstone (Clastic sedimentary rock (Quartz arenite or Arkose)) — sedimentary

Sandstone

Clastic sedimentary rock (Quartz arenite or Arkose)

Sandstone (Sedimentary Rock (Quartz Arenite)) — sedimentary

Sandstone

Sedimentary Rock (Quartz Arenite)

Sandstone (Sedimentary Rock (Quartz/Feldspar grains cemented together)) — sedimentary

Sandstone

Sedimentary Rock (Quartz/Feldspar grains cemented together)

Fossilized Coral (Hexagonaria (Rugose coral) / Calcium Carbonate (CaCO3)) — fossil

Fossilized Coral

Hexagonaria (Rugose coral) / Calcium Carbonate (CaCO3)

Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

Sandstone (Sedimentary Clastic Rock) — sedimentary

Sandstone

Sedimentary Clastic Rock

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Graphic Granite / Pegmatite (Graphic Granite (Alkali Feldspar and Quartz)) — igneous

Graphic Granite / Pegmatite

Graphic Granite (Alkali Feldspar and Quartz)

Milky Quartz with Iron Staining (Quartz (SiO2)) — mineral

Milky Quartz with Iron Staining

Quartz (SiO2)

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Sandstone (Clastic sedimentary rock) — sedimentary

Sandstone

Clastic sedimentary rock

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Sandstone (Sedimentary rock composed mainly of quartz sand) — sedimentary

Sandstone

Sedimentary rock composed mainly of quartz sand

Golden Quartz (Silicon Dioxide (SiO2)) — mineral

Golden Quartz

Silicon Dioxide (SiO2)

Red Sandstone (Sandstone (principally Quartz, SiO2, with Iron Oxide hematite cement)) — sedimentary

Red Sandstone

Sandstone (principally Quartz, SiO2, with Iron Oxide hematite cement)

Sandstone Pebble (Sedimentary Rock (Quartzose Sandstone)) — sedimentary

Sandstone Pebble

Sedimentary Rock (Quartzose Sandstone)

Sandstone (Sedimentary Rock (Quartz arenite)) — sedimentary

Sandstone

Sedimentary Rock (Quartz arenite)

Sandstone with Lichen and Iron Oxide Staining (Quartz Arenite / Sandstone) — sedimentary

Sandstone with Lichen and Iron Oxide Staining

Quartz Arenite / Sandstone

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Sandstone (with potential fossil fragments) (Sandstone (SiO2 dominated with iron oxides)) — sedimentary

Sandstone (with potential fossil fragments)

Sandstone (SiO2 dominated with iron oxides)

Granite Boulder (Glacial Erratic) (Granite) — igneous

Granite Boulder (Glacial Erratic)

Granite

Sandstone (with Iron Staining) (Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)

Granite Cobble (Granite) — igneous

Granite Cobble

Granite

Sandstone (Arenite (Sandstone)) — sedimentary

Sandstone

Arenite (Sandstone)

Sandstone (Arenite (SiO2 principal composition)) — sedimentary

Sandstone

Arenite (SiO2 principal composition)

Sandstone (Sandstone (Quartz-rich sedimentary rock)) — sedimentary

Sandstone

Sandstone (Quartz-rich sedimentary rock)

Red Jasper (SiO2 (Silicon Dioxide with Iron Oxide inclusions)) — sedimentary

Red Jasper

SiO2 (Silicon Dioxide with Iron Oxide inclusions)

Pebble Gravel Mix (Quartzite, Basalt, Chert) (Alluvial River Gravel / Aggregate Clasts) — sedimentary

Pebble Gravel Mix (Quartzite, Basalt, Chert)

Alluvial River Gravel / Aggregate Clasts

Agate Nodules (Cryptocrystalline Quartz (SiO2)) — mineral

Agate Nodules

Cryptocrystalline Quartz (SiO2)

Red Sandstone (Sandstone (hematitic/iron-rich quartzite or arenite)) — sedimentary

Red Sandstone

Sandstone (hematitic/iron-rich quartzite or arenite)

Veined Pebble (Septarian or Quartz-Veined Chert/Basalt) (Silicon Dioxide (SiO2) veins in matrix) — sedimentary

Veined Pebble (Septarian or Quartz-Veined Chert/Basalt)

Silicon Dioxide (SiO2) veins in matrix