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

Limonite (FeO(OH)·nH2O) — mineral

Limonite

FeO(OH)·nH2O

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

Limonite

FeO(OH)·nH2O

mineral
Limonite Concretion (Hydrated Iron Oxide Hydroxide, FeO(OH)nH2O) — mineral

Limonite Concretion

Hydrated Iron Oxide Hydroxide, FeO(OH)nH2O

mineral
Greenstone (Protolith: Basaltic rock) — metamorphic

Greenstone

Protolith: Basaltic rock

metamorphic
Greenstone (Greenschist / Meta-basalt) — metamorphic

Greenstone

Greenschist / Meta-basalt

metamorphic
Pegmatite (Pegmatite (coarse-grained intrusive igneous rock)) — igneous

Pegmatite

Pegmatite (coarse-grained intrusive igneous rock)

igneous
Quartz Drusy (on Geode Fragment) (Crystalline Silicon Dioxide (SiO2)) — mineral

Quartz Drusy (on Geode Fragment)

Crystalline Silicon Dioxide (SiO2)

mineral
Green Jasper (Silicon Dioxide (SiO2) with mineral inclusions) — sedimentary

Green Jasper

Silicon Dioxide (SiO2) with mineral inclusions

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

Dendritic Agate

Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions

mineral
Green Quartz (Silicon Dioxide (SiO2)) — mineral

Green Quartz

Silicon Dioxide (SiO2)

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

Limonite

FeO(OH)·nH2O

mineral
Obsidian (Volcanic Glass (predominantly SiO2)) — igneous

Obsidian

Volcanic Glass (predominantly SiO2)

igneous
Vesicular Basalt (Amygdaloidal Basalt (Mafic extrusive volcanic rock)) — Igneous

Vesicular Basalt

Amygdaloidal Basalt (Mafic extrusive volcanic rock)

Igneous
Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

mineral
Stilbite (Stilbite-Ca (NaCa4Mg[Al9Si27O72]·28H2O)) — mineral

Stilbite

Stilbite-Ca (NaCa4Mg[Al9Si27O72]·28H2O)

mineral
Snowflake Obsidian (Spherulitic Obsidian (primarily SiO2)) — igneous

Snowflake Obsidian

Spherulitic Obsidian (primarily SiO2)

igneous
Okenite (in Zeolite matrix) (Okenite (CaSi2O5 · 2H2O)) — mineral

Okenite (in Zeolite matrix)

Okenite (CaSi2O5 · 2H2O)

mineral
Mahogany Obsidian (Volcanic glass (high silica) with inclusions of Magnetite or Hematite) — igneous

Mahogany Obsidian

Volcanic glass (high silica) with inclusions of Magnetite or Hematite

igneous
Chalcedony (Silicon dioxide (SiO2)) — mineral

Chalcedony

Silicon dioxide (SiO2)

mineral
Black Obsidian (Volcanic Glass) — igneous

Black Obsidian

Volcanic Glass

igneous
Moss Agate (Silicon Dioxide (Chalcedony with green mineral inclusions), SiO2) — gemstone

Moss Agate

Silicon Dioxide (Chalcedony with green mineral inclusions), SiO2

gemstone
Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

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

Chrysocolla

Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O

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

Muscovite

KAl2(AlSi3O10)(OH)2

mineral
Raw Corundum (Sapphire/Ruby variant) (Aluminum oxide (Al2O3)) — mineral

Raw Corundum (Sapphire/Ruby variant)

Aluminum oxide (Al2O3)

mineral
Sapphire (Corundum (Al2O3)) — mineral

Sapphire

Corundum (Al2O3)

mineral
Bauxite (Bauxite (mixture of hydrous aluminum oxides: Al(OH)3 & AlO(OH))) — sedimentary

Bauxite

Bauxite (mixture of hydrous aluminum oxides: Al(OH)3 & AlO(OH))

sedimentary
Gypsum (variety Selenite or Alabaster) (Calcium sulfate dihydrate (CaSO4·2H2O)) — Mineral

Gypsum (variety Selenite or Alabaster)

Calcium sulfate dihydrate (CaSO4·2H2O)

Mineral
Petrified Wood (Silicified wood (SiO2)) — sedimentary

Petrified Wood

Silicified wood (SiO2)

sedimentary
Peacock Ore (Bornite (Cu5FeS4)) — mineral

Peacock Ore

Bornite (Cu5FeS4)

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

Geode half

Geode (often quartz/chalcedony based)

sedimentary or igneous
Sandstone (Arenite (Sedimentary Rock)) — sedimentary

Sandstone

Arenite (Sedimentary Rock)

sedimentary
Desert Rose (Gypsum or Baryte rosette (CaSO4·2H2O or BaSO4)) — mineral

Desert Rose

Gypsum or Baryte rosette (CaSO4·2H2O or BaSO4)

mineral
Apatite (Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))) — mineral

Apatite

Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))

mineral
Limonite (FeO(OH)•nH2O) — mineral

Limonite

FeO(OH)•nH2O

mineral
Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

sedimentary
Sandstone (Sedimentary Rock) — sedimentary

Sandstone

Sedimentary Rock

sedimentary
Sandstone (Weathered Fragment) (Clastic Sedimentary Rock) — sedimentary

Sandstone (Weathered Fragment)

Clastic Sedimentary Rock

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

Green Fluorite

Calcium Fluoride (CaF2)

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

Muscovite Mica

Muscovite KAl2(AlSi3O10)(OH)2

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

Biotite Mica

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

mineral
Diamond (Native Carbon (C)) — mineral

Diamond

Native Carbon (C)

mineral