Rock Identifier

Category

Antropogenic (Man Made Industrial Byproduct)

Browse antropogenic (man made industrial byproduct) specimens identified by the Rock Identifier community.

Learn about Antropogenic (Man Made Industrial Byproduct) in the encyclopedia

Opalite

Goldstone

Blue Goldstone

Zincite

Lherzolite

Gondite

Dunite

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Quartzite (Metamorphic Quartzite (primarily SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (primarily SiO2)

Quartzite (Metamorphic Quartzite (primarily SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (primarily SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Rough amber-like brown mineral specimen (Uncertain from photograph; possibly iron-stained quartz, common opal, or resinous amber) — mineral

Rough amber-like brown mineral specimen

Uncertain from photograph; possibly iron-stained quartz, common opal, or resinous amber

Vesicular volcanic rock, likely weathered pumice or scoria (Pumice/scoria; predominantly volcanic glass and feldspar, with possible iron oxides) — igneous

Vesicular volcanic rock, likely weathered pumice or scoria

Pumice/scoria; predominantly volcanic glass and feldspar, with possible iron oxides

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Amethyst (Quartz (SiO2) with trace iron impurities) — Mineral

Amethyst

Quartz (SiO2) with trace iron impurities

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Quartzite (Metamorphic Quartzite) — metamorphic

Quartzite

Metamorphic Quartzite

Chert (varietal: Flint/Jasper) (Silicon Dioxide (SiO2)) — sedimentary

Chert (varietal: Flint/Jasper)

Silicon Dioxide (SiO2)

Fossilized Shell in Limestone (Biogenic Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Fossilized Shell in Limestone

Biogenic Limestone (Calcium Carbonate, CaCO3)

Sandstone (Quartzose) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (primarily SiO2)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Likely metallic meteorite fragment (Unclassified iron-rich meteorite; possible stony-iron or iron meteorite) — meteorite

Likely metallic meteorite fragment

Unclassified iron-rich meteorite; possible stony-iron or iron meteorite

Sandstone (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone

Clastic sedimentary rock (primarily SiO2)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Quartzite (Quartzite (Metamorphosed Sandstone)) — metamorphic

Quartzite

Quartzite (Metamorphosed Sandstone)

Possible tektite or iron-rich slag-like natural specimen (Uncertain; possibly natural glass (tektite) or magnetite-rich rock) — mineral

Possible tektite or iron-rich slag-like natural specimen

Uncertain; possibly natural glass (tektite) or magnetite-rich rock

Chert (Siltstone / Flint) (SiO2 (Cryptocrystalline Quartz)) — sedimentary

Chert (Siltstone / Flint)

SiO2 (Cryptocrystalline Quartz)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Sandstone (Sedimentary Rock (Quartz Sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartz Sandstone)

Sapphire (likely blue synthetic sapphire or blue glass in a ring) (Corundum (Al₂O₃), specifically the blue variety due to trace amounts of iron and titanium impurities. If synthetic, it would still be Al₂O₃.) — Mineral

Sapphire (likely blue synthetic sapphire or blue glass in a ring)

Corundum (Al₂O₃), specifically the blue variety due to trace amounts of iron and titanium impurities. If synthetic, it would still be Al₂O₃.

Coal (Anthracite or Bituminous Coal (Carbon)) — sedimentary

Coal

Anthracite or Bituminous Coal (Carbon)

Quartz (variety of colors) (SiO2 (Silicon Dioxide)) — Mineral

Quartz (variety of colors)

SiO2 (Silicon Dioxide)

Vesicular Rhyolite (Rhyolite (High-silica volcanic rock)) — igneous

Vesicular Rhyolite

Rhyolite (High-silica volcanic rock)

Weathered chert or chalcedony nodule (Microcrystalline quartz (SiO₂), possibly silicified limestone or agate-like chalcedony) — sedimentary

Weathered chert or chalcedony nodule

Microcrystalline quartz (SiO₂), possibly silicified limestone or agate-like chalcedony

Pyrite (Pyrite (FeS2)) — Mineral

Pyrite

Pyrite (FeS2)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Sandstone (Arenite (variable SiO2 composition)) — sedimentary

Sandstone

Arenite (variable SiO2 composition)

Sandstone (Quartz-rich Cobble) (Arenite) — sedimentary

Sandstone (Quartz-rich Cobble)

Arenite

Red Quartzite (Quartzite (Metamorphic quartz sandstone)) — metamorphic

Red Quartzite

Quartzite (Metamorphic quartz sandstone)

Aragonite (Aragonite (Calcium Carbonate - CaCO3)) — mineral

Aragonite

Aragonite (Calcium Carbonate - CaCO3)

Sandstone (Pebble) (Sandstone (SiO2 with matrix/cement)) — sedimentary

Sandstone (Pebble)

Sandstone (SiO2 with matrix/cement)

Goldstone (aventurine glass) (Synthetic copper-bearing soda-lime glass; commonly sold as red goldstone) — gemstone

Goldstone (aventurine glass)

Synthetic copper-bearing soda-lime glass; commonly sold as red goldstone

Fossilized Coral (Coquina/Limestone) (Cnidaria Anthozoa (Fossilized)) — sedimentary

Fossilized Coral (Coquina/Limestone)

Cnidaria Anthozoa (Fossilized)

Chalk (Calcium Carbonate (CaCO3)) — sedimentary

Chalk

Calcium Carbonate (CaCO3)

Pearl (Aragonite (CaCO3 with conchiolin)) — mineral

Pearl

Aragonite (CaCO3 with conchiolin)

Smoky Quartz Cluster (Smoky Quartz (Silicon Dioxide - SiO2)) — mineral

Smoky Quartz Cluster

Smoky Quartz (Silicon Dioxide - SiO2)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)