Rock Identifier

Category

Anthropogenic (Man Made Product Subject To Geological Processes)

Browse anthropogenic (man made product subject to geological processes) specimens identified by the Rock Identifier community.

Learn about Anthropogenic (Man Made Product Subject To Geological Processes) in the encyclopedia

Zincite

Green Moss Agate (Silicon Dioxide (SiO2) with inclusions of hornblende or chlorite) — sedimentary

Green Moss Agate

Silicon Dioxide (SiO2) with inclusions of hornblende or chlorite

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Chalk (Calcium Carbonate (CaCO3)) — sedimentary

Chalk

Calcium Carbonate (CaCO3)

Dark quartz point (possibly smoky quartz) (Quartz, SiO₂; the dark color may indicate smoky quartz, but the image is insufficient to confirm) — mineral

Dark quartz point (possibly smoky quartz)

Quartz, SiO₂; the dark color may indicate smoky quartz, but the image is insufficient to confirm

Jasper (Silicon dioxide (SiO2) with impurities) — sedimentary

Jasper

Silicon dioxide (SiO2) with impurities

Iron-stained Quartzite (Recrystallized Quartz (SiO2) with Hematite/Limonite staining) — metamorphic

Iron-stained Quartzite

Recrystallized Quartz (SiO2) with Hematite/Limonite staining

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Rhodonite (Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)) — mineral

Rhodonite

Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Quartzite Pebble (Metamorphic Quartzite) — metamorphic

Quartzite Pebble

Metamorphic Quartzite

Quartzite (Quartzite (Metamorphosed Quartz Sandstone)) — metamorphic

Quartzite

Quartzite (Metamorphosed Quartz Sandstone)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Marble (Metamorphic Limestone (CaCO3)) — metamorphic

Marble

Metamorphic Limestone (CaCO3)

Diamond in Kimberlite (Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)) — igneous

Diamond in Kimberlite

Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)

Milky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Milky quartz

Quartz (silicon dioxide, SiO₂)

Optical Calcite (Calcium Carbonate (CaCO3)) — mineral

Optical Calcite

Calcium Carbonate (CaCO3)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Crushed Stone / Gravel (Aggregatus saxum (variable mineral composition)) — sedimentary

Crushed Stone / Gravel

Aggregatus saxum (variable mineral composition)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Limestone (Sedimentary Rock (Primarily CaCO3)) — sedimentary

Limestone

Sedimentary Rock (Primarily CaCO3)

Granodiorite (Granodiorite) — Igneous

Granodiorite

Granodiorite

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

Quartzite (Quartzite) — metamorphic

Quartzite

Quartzite

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Fossilized Coral (Coquina/Limestone)

Cnidaria Anthozoa (Fossilized)

Quartz (Quartz (SiO2)) — Mineral

Quartz

Quartz (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

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

Sandstone

Arenite (composed primarily of SiO2)

Quartzite (Quartzite (Metamorphosed Sandstone)) — metamorphic

Quartzite

Quartzite (Metamorphosed Sandstone)

Quartzite (Quartzite (Metamorphosed Quartz Arenite)) — metamorphic

Quartzite

Quartzite (Metamorphosed Quartz Arenite)

Sandstone (likely Fossiliferous) (Arenite / Fossiliferous Sandstone (SiO2 composition)) — sedimentary

Sandstone (likely Fossiliferous)

Arenite / Fossiliferous Sandstone (SiO2 composition)

Opalite (Synthetic glass / Opalized glass) — gemstone

Opalite

Synthetic glass / Opalized glass

Quartz River Cobble (Silicon Dioxide (SiO2)) — mineral

Quartz River Cobble

Silicon Dioxide (SiO2)

Tumbled orbicular granite (Granite, predominantly potassium feldspar, plagioclase, quartz, and biotite/hornblende) — igneous

Tumbled orbicular granite

Granite, predominantly potassium feldspar, plagioclase, quartz, and biotite/hornblende

Gold Ore in Quartz (Auriferous Quartz (Au + SiO2)) — igneous

Gold Ore in Quartz

Auriferous Quartz (Au + SiO2)

Quartzite (Metamorphic Quartz Sandstone) — metamorphic

Quartzite

Metamorphic Quartz Sandstone

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) — metamorphic

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Sandstone (Arenite (variable SiO2 composition)) — sedimentary

Sandstone

Arenite (variable SiO2 composition)