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

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Calc-Silicate Rock

Calc-Silicate Rock

Garden Quartz

Garden Quartz

Ribbon Jasper

Sagenite Agate

Sagenite Agate

Leopard Skin Jasper

Leopard Skin Jasper

Flower Jasper

Flower Jasper

Feather Jasper

Dendritic Opal

Dendritic Opal

Starburst Agate

Plume Agate

Plume Agate

Feather Agate

Feather Agate

Moss Opal

Moss Opal

Blue Aventurine (Quartz (Silicon Dioxide, SiO2) with inclusions) — mineral

Blue Aventurine

Quartz (Silicon Dioxide, SiO2) with inclusions

mineral
Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

sedimentary
Prehnite (Prehnite (Ca2Al2Si3O10(OH)2)) — mineral

Prehnite

Prehnite (Ca2Al2Si3O10(OH)2)

mineral
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O) — mineral

Chrysocolla

Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O

mineral
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

mineral
Iron Concretion (Ferruginous concretion (Fe2O3·nH2O / FeO(OH))) — sedimentary

Iron Concretion

Ferruginous concretion (Fe2O3·nH2O / FeO(OH))

sedimentary
Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

mineral
Magnetite (Magnetite (Iron(II,III) oxide, Fe3O4)) — mineral

Magnetite

Magnetite (Iron(II,III) oxide, Fe3O4)

mineral
Siderite Concretion (Ironstone (Siderite) Concretion, FeCO3) — sedimentary

Siderite Concretion

Ironstone (Siderite) Concretion, FeCO3

sedimentary
Magnetite (Iron Ore) (Magnetite (Fe3O4)) — mineral

Magnetite (Iron Ore)

Magnetite (Fe3O4)

mineral
Shale (Fissile mudstone (primarily clay minerals and silt-sized quartz)) — sedimentary

Shale

Fissile mudstone (primarily clay minerals and silt-sized quartz)

sedimentary
Prehnite on Basalt (Prehnite - Ca2Al(AlSi3O10)(OH)2) — mineral

Prehnite on Basalt

Prehnite - Ca2Al(AlSi3O10)(OH)2

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

Malachite

Copper(II) carbonate hydroxide, Cu2CO3(OH)2

mineral
Magnetite / Iron Ore (Magnetite (Fe3O4)) — mineral

Magnetite / Iron Ore

Magnetite (Fe3O4)

mineral
Quartz Pebble with Mineral Inclusions (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble with Mineral Inclusions

Silicon Dioxide (SiO2)

mineral
Dendritic Opal (Opalized Chalcedony with Manganese Inclusions (SiO2 · nH2O)) — mineral

Dendritic Opal

Opalized Chalcedony with Manganese Inclusions (SiO2 · nH2O)

mineral
Jet (Lignite (Anthracite-grade compact coal)) — sedimentary

Jet

Lignite (Anthracite-grade compact coal)

sedimentary
Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

mineral
Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

mineral
Quartz Vein in Host Rock (Silicon Dioxide (SiO2) in Altered Host Rock) — mineral

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) in Altered Host Rock

mineral
Quartz Veinated Sandstone or Siltstone (Silicon Dioxide (SiO2) within a clastic sedimentary matrix) — sedimentary

Quartz Veinated Sandstone or Siltstone

Silicon Dioxide (SiO2) within a clastic sedimentary matrix

sedimentary
Blue Apatite (Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)

mineral
Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

mineral
Tree Agate (Silicon Dioxide (SiO2) with Chlorite inclusions) — mineral

Tree Agate

Silicon Dioxide (SiO2) with Chlorite inclusions

mineral
Agate (Banded Chalcedony) (Agate (Silicon Dioxide, SiO2)) — mineral

Agate (Banded Chalcedony)

Agate (Silicon Dioxide, SiO2)

mineral
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)

mineral
Blue Lace Agate (Geode/Druzy variant) (Chalcedony (SiO2) with Quartz druzy) — mineral

Blue Lace Agate (Geode/Druzy variant)

Chalcedony (SiO2) with Quartz druzy

mineral
White Chalcedony (likely Common Opal or Milky Quartz) (Silicon Dioxide (SiO2)) — mineral

White Chalcedony (likely Common Opal or Milky Quartz)

Silicon Dioxide (SiO2)

mineral
Petrified Wood (Silicified Wood (SiO2)) — mineral

Petrified Wood

Silicified Wood (SiO2)

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Magnetite (Octahedral Crystal) (Magnetite (Fe3O4)) — mineral

Magnetite (Octahedral Crystal)

Magnetite (Fe3O4)

mineral
Sunstone (Plagioclase Feldspar (Na,Ca)(Si,Al)3O8) — mineral

Sunstone

Plagioclase Feldspar (Na,Ca)(Si,Al)3O8

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

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

mineral
Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

mineral
Satin Spar (Satin Spar Selenite) (Gypsum (CaSO4·2H2O)) — mineral

Satin Spar (Satin Spar Selenite)

Gypsum (CaSO4·2H2O)

mineral
Sandstone (Sandstone ( преимущественно SiO2 )) — sedimentary

Sandstone

Sandstone ( преимущественно SiO2 )

sedimentary
Sandstone Concretion (Ferruginous Sandstone Concretion) — sedimentary

Sandstone Concretion

Ferruginous Sandstone Concretion

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

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

mineral
Shale or Mudstone River Pebble (Argillaceous sedimentary rock) — sedimentary

Shale or Mudstone River Pebble

Argillaceous sedimentary rock

sedimentary
Green Aventurine (Silicon Dioxide (SiO2) with inclusions of Fuchsite (mica)) — Mineral (variety of Quartz)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite (mica)

Mineral (variety of Quartz)
Sandstone (Quartzose) (Arenite (predominantly SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (predominantly SiO2)

sedimentary
Chrysocolla on Limonite Matrix (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla) on FeO(OH)·nH2O (Limonite)) — mineral

Chrysocolla on Limonite Matrix

Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla) on FeO(OH)·nH2O (Limonite)

mineral