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

Banded Gneiss (River Rock/Pebble) (Gneiss (specifically a banded variety often found as a river rock)) — Metamorphic Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Dendritic Agate (Silicon Dioxide (SiO2) with Manganese/Iron inclusions) — mineral

Dendritic Agate

Silicon Dioxide (SiO2) with Manganese/Iron inclusions

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Banded Gneiss (Gneiss) — metamorphic

Banded Gneiss

Gneiss

Pegmatite (Igneous Pegmatite) — igneous

Pegmatite

Igneous Pegmatite

Sunstone (Feldspar) ((Ca,Na)((Al,Si)2Si2O8) with inclusions of Hematite or Goethite) — mineral

Sunstone (Feldspar)

(Ca,Na)((Al,Si)2Si2O8) with inclusions of Hematite or Goethite

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

Lepidolite

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

Malachite (Copper(II) carbonate hydroxide [Cu2CO3(OH)2]) — mineral

Malachite

Copper(II) carbonate hydroxide [Cu2CO3(OH)2]

Pegmatite with Schorl (Black Tourmaline) and Mica (Pegmatite (complex association of NaAlSi3O8, NaFe3Al6(BO3)3Si6O18(OH)4, and KAl2(AlSi3O10)(OH,F)2)) — igneous

Pegmatite with Schorl (Black Tourmaline) and Mica

Pegmatite (complex association of NaAlSi3O8, NaFe3Al6(BO3)3Si6O18(OH)4, and KAl2(AlSi3O10)(OH,F)2)

Serpentinite (Serpentinite (Hydrated magnesium iron silicate)) — metamorphic

Serpentinite

Serpentinite (Hydrated magnesium iron silicate)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Plume Agate (Silicon Dioxide (SiO2) - Chalcedony Variety) — mineral

Plume Agate

Silicon Dioxide (SiO2) - Chalcedony Variety

Geode half (Geode (often quartz/chalcedony based)) — sedimentary or igneous

Geode half

Geode (often quartz/chalcedony based)

sedimentary or igneous

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Quartz with Iron Staining and Chlorite Inclusions (Silicon Dioxide (SiO2)) — mineral

Quartz with Iron Staining and Chlorite Inclusions

Silicon Dioxide (SiO2)

Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Metamorphic Rock)

Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Fluorite

Fluorite (Calcium Fluoride, CaF2)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Fossilized Stingray Mouth Plate (Myliobatidae gen. et sp. indet. (e.g., Myliobatis, Aetobatus)) — fossil

Fossilized Stingray Mouth Plate

Myliobatidae gen. et sp. indet. (e.g., Myliobatis, Aetobatus)

Howlite (Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)) — mineral

Howlite

Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)

Granite (Phaneritic plutonic rock (Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Phaneritic plutonic rock (Quartz, Alkali Feldspar, and Plagioclase)

Greenstone with Quartz Veining (Epidiorite or Metabasalt with SiO2 (Quartz) veins) — metamorphic

Greenstone with Quartz Veining

Epidiorite or Metabasalt with SiO2 (Quartz) veins

Muscovite Mica (KAl2(AlSi3O10)(OH)2) — mineral

Muscovite Mica

KAl2(AlSi3O10)(OH)2

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Native Copper (Copper (Cu)) — mineral

Native Copper

Copper (Cu)

Limonite (Yellow Ochre) (Limonite (Hydrated iron(III) oxide-hydroxide, FeO(OH)·nH2O)) — mineral

Limonite (Yellow Ochre)

Limonite (Hydrated iron(III) oxide-hydroxide, FeO(OH)·nH2O)

Desert Rose (Barite Rose / Gypsum Rose) (Barium Sulfate (BaSO4) or Hydrous Calcium Sulfate (CaSO4%22H2O)) — mineral

Desert Rose (Barite Rose / Gypsum Rose)

Barium Sulfate (BaSO4) or Hydrous Calcium Sulfate (CaSO4%22H2O)

Mica Schist (Mica Schist (predominantly Muscovite or Biotite sheet silicates)) — metamorphic

Mica Schist

Mica Schist (predominantly Muscovite or Biotite sheet silicates)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Dendritic Agate (Dendritic Agate (Silicon Dioxide with Manganese or Iron Oxide inclusions, SiO2)) — mineral

Dendritic Agate

Dendritic Agate (Silicon Dioxide with Manganese or Iron Oxide inclusions, SiO2)

Leopardite (Porphyritic Quartz Monzonite or Rhyolite) — igneous

Leopardite

Porphyritic Quartz Monzonite or Rhyolite

Ruby (Raw Corundum) (Al2O3 (Aluminum Oxide)) — mineral

Ruby (Raw Corundum)

Al2O3 (Aluminum Oxide)

Orthoclase Feldspar with Quartz (Orthoclase (KAlSi3O8)) — mineral

Orthoclase Feldspar with Quartz

Orthoclase (KAlSi3O8)

Green Fluorite (Fluorite (Calcium Fluoride - CaF2)) — mineral

Green Fluorite

Fluorite (Calcium Fluoride - CaF2)

Epidote (Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)) — metamorphic

Epidote

Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

Green Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Green Chert

Microcrystalline Quartz (SiO2)

Mixed River Pebbles (Jasper, Hematite, and Quartzites) (Silicon dioxide (Jasper/Quartz) and Iron oxide (Hematite)) — sedimentary

Mixed River Pebbles (Jasper, Hematite, and Quartzites)

Silicon dioxide (Jasper/Quartz) and Iron oxide (Hematite)

Geode (Unopened) (Silicon dioxide with various inclusions (SiO2)) — sedimentary

Geode (Unopened)

Silicon dioxide with various inclusions (SiO2)

Azurite in Matrix (Azurite (Cu3(CO3)2(OH)2) in Rhyolite or Sandstone matrix) — mineral

Azurite in Matrix

Azurite (Cu3(CO3)2(OH)2) in Rhyolite or Sandstone matrix

Desert Rose (Sand Barite/Gypsum Rose) (Barium Sulfate (BaSO4) or Hydrated Calcium Sulfate (CaSO4·2H2O)) — mineral

Desert Rose (Sand Barite/Gypsum Rose)

Barium Sulfate (BaSO4) or Hydrated Calcium Sulfate (CaSO4·2H2O)