Rock Identifier

Category

Mineral Like (Anthropogenic)

Browse mineral like (anthropogenic) specimens identified by the Rock Identifier community.

Learn about Mineral Like (Anthropogenic) in the encyclopedia

Calc-Silicate Rock

Calc-Silicate Rock

Garden Quartz

Ribbon Jasper

Sagenite Agate

Leopard Skin Jasper

Leopard Skin Jasper

Flower Jasper

Feather Jasper

Dendritic Opal

Starburst Agate

Plume Agate

Feather Agate

Moss Opal

Limonite (Iron-rich Gossan/Laterite) (FeO(OH)·nH2O (Hydrated Iron Oxide)) — mineral

Limonite (Iron-rich Gossan/Laterite)

FeO(OH)·nH2O (Hydrated Iron Oxide)

Olivine (Peridot) (Magnesium Iron Silicate (Mg,Fe)2SiO4) — mineral

Olivine (Peridot)

Magnesium Iron Silicate (Mg,Fe)2SiO4

Red Sandstone (Arenite (Ferruginous Sandstone)) — sedimentary

Red Sandstone

Arenite (Ferruginous Sandstone)

Granite Gneiss (Felsic Gneiss) — metamorphic

Granite Gneiss

Felsic Gneiss

Conglomerate (Conglomerate (SiO2 matrix with various silicate clasts)) — sedimentary

Conglomerate

Conglomerate (SiO2 matrix with various silicate clasts)

Conglomerate (Clastic sedimentary rock (Conglomerate)) — sedimentary

Conglomerate

Clastic sedimentary rock (Conglomerate)

Garnet Schist (Garnetiferous Mica Schist) — metamorphic

Garnet Schist

Garnetiferous Mica Schist

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Yellow Jasper (Silicon Dioxide (SiO2) with goethite or iron oxide inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with goethite or iron oxide inclusions

Sandstone (Calcareous/Lithic) (Sedimentary Rock (Clastic Sandstone with Calcium Carbonate cement)) — sedimentary

Sandstone (Calcareous/Lithic)

Sedimentary Rock (Clastic Sandstone with Calcium Carbonate cement)

Sandstone (Arenite (primary component SiO2)) — sedimentary

Sandstone

Arenite (primary component SiO2)

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

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

Sandstone

Arenite (composed primarily of SiO2)

Granitoid (Pegmatitic Granite) (Granitoid with dominant Potassium Feldspar and Quartz) — igneous

Granitoid (Pegmatitic Granite)

Granitoid with dominant Potassium Feldspar and Quartz

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

Sandstone

Arenite (composed primarily of SiO2)

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Strawberry Quartz (Quartz with Hematite inclusions) (Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)) — mineral

Strawberry Quartz (Quartz with Hematite inclusions)

Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)

Leopard Skin Jasper (Silicon Dioxide (SiO2) with various inclusions) — sedimentary

Leopard Skin Jasper

Silicon Dioxide (SiO2) with various inclusions

Red Sandstone (Arenite (predominantly Quartz with Hematite cementation)) — sedimentary

Red Sandstone

Arenite (predominantly Quartz with Hematite cementation)

Mixed Tumbled Rocks and Minerals Collection (Mixed Minerals and Rocks (Quartz, Feldspar, Jasper, Agate, Lapis Lazuli, Sodalite, Rose Quartz, Fluorite, etc.)) — mineral

Mixed Tumbled Rocks and Minerals Collection

Mixed Minerals and Rocks (Quartz, Feldspar, Jasper, Agate, Lapis Lazuli, Sodalite, Rose Quartz, Fluorite, etc.)

Obsidian (Obsidian (Volcanic Glass, SiO2 + impurity)) — Igneous

Obsidian

Obsidian (Volcanic Glass, SiO2 + impurity)

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

Sandstone

Arenite (composed primarily of SiO2)

Black Garnet (Melanite) (Andradite, Ca3Fe2(SiO4)3) — mineral

Black Garnet (Melanite)

Andradite, Ca3Fe2(SiO4)3

Blue Sapphire (likely costume glass imitation) (Corundum (Al2O3) with iron/titanium impurities) — mineral

Blue Sapphire (likely costume glass imitation)

Corundum (Al2O3) with iron/titanium impurities

Rutilated Quartz (with Garnet pendant) (Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions) — mineral

Rutilated Quartz (with Garnet pendant)

Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions

Moss Agate (SiO2) — mineral

Moss Agate

SiO2

Clear Quartz Crystal (Herkimer Diamond style) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz Crystal (Herkimer Diamond style)

Silicon Dioxide (SiO2)

Greenschist (Greenschist (Chlorite-actinolite schist)) — metamorphic

Greenschist

Greenschist (Chlorite-actinolite schist)

Bauxite (Bauxite (Al2O3·2H2O)) — sedimentary

Bauxite

Bauxite (Al2O3·2H2O)

Petrified Wood / Fossilized Wood (Silicified Wood (Silicon Dioxide - SiO2)) — fossil

Petrified Wood / Fossilized Wood

Silicified Wood (Silicon Dioxide - SiO2)

Red Sandstone (Ferruginous Sandstone (SiO2 with Fe2O3)) — sedimentary

Red Sandstone

Ferruginous Sandstone (SiO2 with Fe2O3)

Sandstone with Iron Staining (Arenite (SiO2 with FeO(OH) impurities)) — sedimentary

Sandstone with Iron Staining

Arenite (SiO2 with FeO(OH) impurities)

Gneiss (Gneiss (High-Grade Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (High-Grade Metamorphic Rock)

Desert Rose (Gypsum (variety Selenite) - CaSO4·2H2O) — mineral

Desert Rose

Gypsum (variety Selenite) - CaSO4·2H2O

Obsidian (Volcanic Glass (Amorphous SiO2)) — igneous

Obsidian

Volcanic Glass (Amorphous SiO2)

Obsidian (Volcanic Glass (SiO2 with impurities)) — igneous

Obsidian

Volcanic Glass (SiO2 with impurities)

Arsenopyrite in Quartz Matrix (Arsenopyrite (FeAsS) with Quartz (SiO2)) — mineral

Arsenopyrite in Quartz Matrix

Arsenopyrite (FeAsS) with Quartz (SiO2)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Sulfur on Aragonite (Sulfur (S) on Aragonite (CaCO3)) — mineral

Sulfur on Aragonite

Sulfur (S) on Aragonite (CaCO3)

Biotite or Phlogopite Mica (K(Mg,Fe)3(AlSi3O10)(F,OH)2) — mineral

Biotite or Phlogopite Mica

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

Banded Gneiss (Gneiss (SiO2 enriched metamorphic rock)) — metamorphic

Banded Gneiss

Gneiss (SiO2 enriched metamorphic rock)