Rock Identifier

Category

Mineral Health

Browse mineral health specimens identified by the Rock Identifier community.

Learn about Mineral Health in the encyclopedia

Glauconite

Glauconite

Hutcheonite

Hutcheonite

Halite

Halite

Sperrylite

Sperrylite

Baddeleyite

Baddeleyite

Anatase

Anatase

Brookite

Brookite

Talc

Talc

Euxenite

Euxenite

Dolomite

Dolomite

Buergerite

Buergerite

Eltyubyuite

Eltyubyuite

Tiger Shark Fossil Tooth (Galeocerdo cuvier (fossilized)) — sedimentary

Tiger Shark Fossil Tooth

Galeocerdo cuvier (fossilized)

Megalodon Shark Tooth Fossil (Otodus megalodon) — sedimentary

Megalodon Shark Tooth Fossil

Otodus megalodon

Yellow Jade (Nephrite or Jadeite) (Nephrite: Ca2(Mg, Fe)5Si8O22(OH)2; Jadeite: NaAlSi2O6) — metamorphic

Yellow Jade (Nephrite or Jadeite)

Nephrite: Ca2(Mg, Fe)5Si8O22(OH)2; Jadeite: NaAlSi2O6

Marble (Recrystallized Calcite Rock (CaCO3)) — metamorphic

Marble

Recrystallized Calcite Rock (CaCO3)

Marble (Metamorphosed Limestone (calcite formulation CaCO3)) — metamorphic

Marble

Metamorphosed Limestone (calcite formulation CaCO3)

Marble (Metamorphic Limestone (CaCO3)) — metamorphic

Marble

Metamorphic Limestone (CaCO3)

Marble (Recrystallized Calcite / Dolomite (CaCO3)) — metamorphic

Marble

Recrystallized Calcite / Dolomite (CaCO3)

Marble (Metamorphosed Limestone (principally CaCO3)) — metamorphic

Marble

Metamorphosed Limestone (principally CaCO3)

Breciated Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Breciated Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Eudialyte in Matrix (Eudialyte [Na15Ca6(Fe,Mn)3Zr3(Si25O73)(O,OH,H2O)3(Cl,OH)2]) — mineral

Eudialyte in Matrix

Eudialyte [Na15Ca6(Fe,Mn)3Zr3(Si25O73)(O,OH,H2O)3(Cl,OH)2]

Pyrite (Fool's Gold) Cube (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold) Cube

Iron Sulfide (FeS2)

Muscovite Mica (Muscovite (Potassium Aluminum Silicate Hydroxide Fluoride), KAl2(AlSi3O10)(OH,F)2) — mineral

Muscovite Mica

Muscovite (Potassium Aluminum Silicate Hydroxide Fluoride), KAl2(AlSi3O10)(OH,F)2

Green Aventurine (Aventurine (a variety of Quartz, SiO2)) — Mineral

Green Aventurine

Aventurine (a variety of Quartz, SiO2)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Sandstone (Ferruginous) (Arenite (primarily SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Fe2O3 staining)

Rose Quartz (SiO2 (Silicon Dioxide)) — mineral

Rose Quartz

SiO2 (Silicon Dioxide)

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

Malachite

Copper carbonate hydroxide, Cu2CO3(OH)2

Porphyritic Basalt (Porphyritic Basalt (Silicate Rock)) — igneous

Porphyritic Basalt

Porphyritic Basalt (Silicate Rock)

Basalt with Quartz Veins (Aphanitic Mafic Igneous Rock (primarily Plagioclase and Pyroxene) with SiO2 inclusions) — igneous

Basalt with Quartz Veins

Aphanitic Mafic Igneous Rock (primarily Plagioclase and Pyroxene) with SiO2 inclusions

Granite (Granite (composed of Quartz, Feldspar, and Mica)) — igneous

Granite

Granite (composed of Quartz, Feldspar, and Mica)

Diamond (Diamond (C)) — mineral

Diamond

Diamond (C)

Unable to Identify (Image Obscured) — Indeterminate

Unable to Identify (Image Obscured)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

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

Diamond

Diamond (Pure Carbon, C)

Sandstone with Quartz Vein (Arenite with Quartz (SiO2) Infilling) — sedimentary

Sandstone with Quartz Vein

Arenite with Quartz (SiO2) Infilling

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Granite (Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Granite (Phaneritic Igneous Rock (Granite)) — igneous

Granite

Phaneritic Igneous Rock (Granite)

Green Aventurine (Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)) — mineral

Green Aventurine

Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)

Sandstone (Ferruginous) (Ferruginous Sandstone (SiO2 with Fe2O3)) — sedimentary

Sandstone (Ferruginous)

Ferruginous Sandstone (SiO2 with Fe2O3)

Granite (Phaneritic intrusive igneous rock) — igneous

Granite

Phaneritic intrusive igneous rock

Granite (River Pebble) (Phaneritic intrusive igneous rock (Felsic)) — igneous

Granite (River Pebble)

Phaneritic intrusive igneous rock (Felsic)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Ruby in Matrix (Corundum (Al2O3)) — mineral

Ruby in Matrix

Corundum (Al2O3)

Green Aventurine (Silicon Dioxide (Quartz) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)) — metamorphic

Green Aventurine

Silicon Dioxide (Quartz) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)

Granite (Granite) — igneous

Granite

Granite

Shale (possibly Carbonaceous or Oil Shale) (Laminated Mudstone (primarily clay minerals and quartz)) — sedimentary

Shale (possibly Carbonaceous or Oil Shale)

Laminated Mudstone (primarily clay minerals and quartz)

Hematite Beads (Hematite (Fe2O3)) — Mineral

Hematite Beads

Hematite (Fe2O3)

Amber (Succinite (Fossilized Tree Resin)) — fossil

Amber

Succinite (Fossilized Tree Resin)

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)