Rock Identifier

Category

Minerals

Browse minerals specimens identified by the Rock Identifier community.

Learn about Minerals in the encyclopedia

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Glauconite

Glauconite

Halite

Halite

Hutcheonite

Hutcheonite

Sperrylite

Sperrylite

Baddeleyite

Baddeleyite

Brookite

Brookite

Anatase

Anatase

Talc

Talc

Euxenite

Euxenite

Eltyubyuite

Eltyubyuite

Dolomite

Dolomite

Buergerite

Buergerite

Diorite (River Pebble) (Phaneritic Intermediate Plutonic Rock (Diorite)) — igneous

Diorite (River Pebble)

Phaneritic Intermediate Plutonic Rock (Diorite)

igneous
Gneiss (Gneissic Metamorphic Rock) — metamorphic

Gneiss

Gneissic Metamorphic Rock

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

Limonite (Yellow Ochre)

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

mineral
Diamond (C (Carbon)) — mineral

Diamond

C (Carbon)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Granite (Course-grained intrusive igneous rock) — igneous

Granite

Course-grained intrusive igneous rock

igneous
Diorite (Salt and Pepper Rock) (Diorite) — igneous

Diorite (Salt and Pepper Rock)

Diorite

igneous
Diamond (Diamond (Pure Carbon, C)) — mineral

Diamond

Diamond (Pure Carbon, C)

mineral
Sapphire (Raw/Rough) (Corundum (Al2O3)) — mineral

Sapphire (Raw/Rough)

Corundum (Al2O3)

mineral
Jasper with Quartz Veins (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Jasper with Quartz Veins

Silicon Dioxide (SiO2) - Microcrystalline Quartz

sedimentary
Diorite (Diorite) — igneous

Diorite

Diorite

igneous
Granite Gneiss (High-grade regional metamorphic rock (Quartz-Feldspar Gneiss)) — metamorphic

Granite Gneiss

High-grade regional metamorphic rock (Quartz-Feldspar Gneiss)

metamorphic
Diorite (Intermediate Phaneritic Igneous Rock) — igneous

Diorite

Intermediate Phaneritic Igneous Rock

igneous
Diorite (Phaneritic intermediate plutonic rock) — igneous

Diorite

Phaneritic intermediate plutonic rock

igneous
Biotite Schist (Biotite Schist (Rich in K(Mg,Fe)3AlSi3O10(OH)2)) — metamorphic

Biotite Schist

Biotite Schist (Rich in K(Mg,Fe)3AlSi3O10(OH)2)

metamorphic
Banded Gneiss (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

metamorphic
Diamond (set in jewelry) (Carbon (C)) — mineral

Diamond (set in jewelry)

Carbon (C)

mineral
Diamond (Cubic carbon (C)) — mineral

Diamond

Cubic carbon (C)

mineral
Gneiss (Granitic Gneiss) (Gneiss (from German Gneis, related to 'spark')) — metamorphic

Gneiss (Granitic Gneiss)

Gneiss (from German Gneis, related to 'spark')

metamorphic
Granitic Gneiss (Gneiss (High-grade Metamorphic Rock)) — metamorphic

Granitic Gneiss

Gneiss (High-grade Metamorphic Rock)

metamorphic
Diorite (Diorite (Intrusive igneous rock)) — igneous

Diorite

Diorite (Intrusive igneous rock)

igneous
Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

mineral
Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

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

Epidote

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

mineral
Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

metamorphic
Granodiorite (Intermediate Phaneritic Plutonic Rock) — igneous

Granodiorite

Intermediate Phaneritic Plutonic Rock

igneous
Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Chrysocolla on Matrix (Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4·nH2O) — mineral

Chrysocolla on Matrix

Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4·nH2O

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Glauconitic Sandstone (Glauconitic Quartz Arenite) — sedimentary

Glauconitic Sandstone

Glauconitic Quartz Arenite

sedimentary
Amber (Copal) (Succinite (fossilized resin)) — mineral

Amber (Copal)

Succinite (fossilized resin)

mineral
Chert (Arrowhead Fragment) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Arrowhead Fragment)

Microcrystalline Quartz (SiO2)

sedimentary
Greenstone / Greenschist (Greenschist (metamorphosed mafic rock)) — metamorphic

Greenstone / Greenschist

Greenschist (metamorphosed mafic rock)

metamorphic
Nephrite Jade (Tremolite-actinolite series [Ca2(Mg,Fe)5Si8O22(OH)2]) — metamorphic

Nephrite Jade

Tremolite-actinolite series [Ca2(Mg,Fe)5Si8O22(OH)2]

metamorphic
Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

sedimentary
Mahogany Obsidian (Volcanic Glass with Hematite (SiO2 + Fe2O3)) — igneous

Mahogany Obsidian

Volcanic Glass with Hematite (SiO2 + Fe2O3)

igneous
Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

sedimentary
Schist (Mica Schist) — metamorphic

Schist

Mica Schist

metamorphic
Sandstone (Ferruginous/Banded) (Clastic Terrigenous Sandstone (SiO2 with Fe2O3 cement)) — sedimentary

Sandstone (Ferruginous/Banded)

Clastic Terrigenous Sandstone (SiO2 with Fe2O3 cement)

sedimentary
Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

sedimentary
Common Green Opal (Hydrated amorphous silicon dioxide (SiO2·nH2O)) — mineral

Common Green Opal

Hydrated amorphous silicon dioxide (SiO2·nH2O)

mineral
Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

mineral