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

Gneissic Granite (Granite Gneiss) — metamorphic

Gneissic Granite

Granite Gneiss

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)

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

Muscovite Mica

KAl2(AlSi3O10)(OH)2

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

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

Malachite

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

Dendritic Quartz (Silicon Dioxide (SiO2) with Manganese Oxide inclusions) — mineral

Dendritic Quartz

Silicon Dioxide (SiO2) with Manganese Oxide inclusions

Greenstone (Metabasalt / Chlorite-actinolite-epidote schist) — metamorphic

Greenstone

Metabasalt / Chlorite-actinolite-epidote schist

Schist (Mica Schist (Metamorphic rock)) — metamorphic

Schist

Mica Schist (Metamorphic rock)

Quartz Geode (SiO2 (Silicon Dioxide)) — sedimentary

Quartz Geode

SiO2 (Silicon Dioxide)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Asphalt (Bituminous Concrete) (Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)) — not a rock (anthropogenic material/technofossil)

Asphalt (Bituminous Concrete)

Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)

not a rock (anthropogenic material/technofossil)

Greenschist (Greenschist (composed mainly of chlorite, epidote, actinolite, and albite)) — metamorphic

Greenschist

Greenschist (composed mainly of chlorite, epidote, actinolite, and albite)

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

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Gneiss (Metamorphic Rock) (Gneiss) — metamorphic

Gneiss (Metamorphic Rock)

Gneiss

Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Metamorphic Rock)

Carved Stone Turtle (Carved Soapstone and Quartz) — mineral

Carved Stone Turtle

Carved Soapstone and Quartz

Red Garnet (Pyrope or Almandine) (Garnet Group (A3B2(SiO4)3)) — mineral

Red Garnet (Pyrope or Almandine)

Garnet Group (A3B2(SiO4)3)

Schist (Schist) — metamorphic

Schist

Schist

Kidney Stone (Calcium Oxalate / Uric Acid) (Calcium Oxalate Monohydrate (Whewellite) / Calcium Oxalate Dihydrate (Weddellite)) — mineral

Kidney Stone (Calcium Oxalate / Uric Acid)

Calcium Oxalate Monohydrate (Whewellite) / Calcium Oxalate Dihydrate (Weddellite)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Limonite / Ironstone (Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O) — mineral

Limonite / Ironstone

Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O

Porphyritic Igneous Rock with Iron Oxide Weathering (Weathered Porphyry (containing Quartz, Feldspar, Amphibole/Biotite, and Hematite/Limonite)) — igneous

Porphyritic Igneous Rock with Iron Oxide Weathering

Weathered Porphyry (containing Quartz, Feldspar, Amphibole/Biotite, and Hematite/Limonite)

Mica Schist (Mica Schist (primarily Muscovite or Biotite KAl2(AlSi3O10)(OH)2)) — metamorphic

Mica Schist

Mica Schist (primarily Muscovite or Biotite KAl2(AlSi3O10)(OH)2)

Quartz-veined Granite or Gneiss Pebble (Silicate-rich metamorphic rock fragment) — metamorphic

Quartz-veined Granite or Gneiss Pebble

Silicate-rich metamorphic rock fragment

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)

Tree Agate (Chalcedony (SiO2)) — gemstone

Tree Agate

Chalcedony (SiO2)

Prehnite with Epidote inclusions (Prehnite - Ca2Al(AlSi3O10)(OH)2; Epidote - Ca2(Al2,Fe)(Si2O7)(SiO4)O(OH)) — mineral

Prehnite with Epidote inclusions

Prehnite - Ca2Al(AlSi3O10)(OH)2; Epidote - Ca2(Al2,Fe)(Si2O7)(SiO4)O(OH)

Orthoclase Feldspar (Potassium Feldspar (KAlSi3O8)) — mineral

Orthoclase Feldspar

Potassium Feldspar (KAlSi3O8)

Concrete (Hydrated Portland Cement Aggregate Composite) — Anthropogenic Sedimentary (Man-made)

Concrete

Hydrated Portland Cement Aggregate Composite

Anthropogenic Sedimentary (Man-made)

Granite (Black/Dark Granite countertop background) (Intrusive felsic/intermediate igneous rock (e.g., granodiorite or tonalite)) — igneous

Granite (Black/Dark Granite countertop background)

Intrusive felsic/intermediate igneous rock (e.g., granodiorite or tonalite)

Fluorite (Calcium fluoride (CaF2)) — mineral

Fluorite

Calcium fluoride (CaF2)

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

Plume Agate

Silicon Dioxide (SiO2) - Chalcedony Variety

Obsidian (Obsidian (Volcanic Glass, ~70% SiO2)) — igneous

Obsidian

Obsidian (Volcanic Glass, ~70% SiO2)

Orange Quartz with Epidote (Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate hydroxide (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))) — mineral

Orange Quartz with Epidote

Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate hydroxide (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Pegmatite (Igneous Pegmatite) — igneous

Pegmatite

Igneous Pegmatite

Limonite (FeO(OH)•nH2O) — mineral

Limonite

FeO(OH)•nH2O

Polished dendritic agate pebble (Chalcedony (microcrystalline SiO₂) with dark manganese- or iron-oxide dendrites) — mineral

Polished dendritic agate pebble

Chalcedony (microcrystalline SiO₂) with dark manganese- or iron-oxide dendrites

Granodiorite (Granodiorite) — Igneous

Granodiorite

Granodiorite