Rock Identifier

Category

Mineral

Browse mineral specimens identified by the Rock Identifier community.

Lapis Lazuli (Na8[Al6Si6O24]Sn (Lazurite-rich metamorphic rock)) — metamorphic

Lapis Lazuli

Na8[Al6Si6O24]Sn (Lazurite-rich metamorphic rock)

metamorphic
Blue Sapphire (Corundum (Al2O3) with traces of Iron and Titanium) — mineral

Blue Sapphire

Corundum (Al2O3) with traces of Iron and Titanium

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

Quartz Pebble

Silicon Dioxide (SiO2)

sedimentary
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) — mineral

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2

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

Milky Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Black Obsidian (Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)) — igneous

Black Obsidian

Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)

igneous
Halite (Halite (NaCl)) — mineral

Halite

Halite (NaCl)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Lapis Lazuli (Low-grade/Calcite-heavy) (Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)) — metamorphic

Lapis Lazuli (Low-grade/Calcite-heavy)

Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)

metamorphic
Bull Quartz (Quartz (Silicon Dioxide - SiO2)) — mineral

Bull Quartz

Quartz (Silicon Dioxide - SiO2)

mineral
Unidentifiable Specimen (Undetermined) — Unknown

Unidentifiable Specimen

Undetermined

Unknown
Olivine (Peridot) (Magnesium Iron Silicate (Mg, Fe)2SiO4) — mineral

Olivine (Peridot)

Magnesium Iron Silicate (Mg, Fe)2SiO4

mineral
Yellow Agate (Silicon Dioxide (SiO2)) — mineral

Yellow Agate

Silicon Dioxide (SiO2)

mineral
Ferruginous Sandstone (Arenite with Iron-oxide cement) — sedimentary

Ferruginous Sandstone

Arenite with Iron-oxide cement

sedimentary
Shungite (Non-crystalline carbon (allotrope of carbon)) — metamorphic

Shungite

Non-crystalline carbon (allotrope of carbon)

metamorphic
Blue Quartz (potentially Dumortierite-included) (Silicon Dioxide (SiO2) with inclusions) — mineral

Blue Quartz (potentially Dumortierite-included)

Silicon Dioxide (SiO2) with inclusions

mineral
Rhodonite (Manganese Silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

mineral
Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

mineral
Peacock Ore (Bornite/Chalcopyrite) (Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)) — mineral

Peacock Ore (Bornite/Chalcopyrite)

Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)

mineral
Blue Sodalite (Sodalite (Na8(Al6Si6O24)Cl2)) — mineral

Blue Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

mineral
Schist (Mica Schist (Composition typically involves Muscovite, Biotite, Quartz, and Feldspar)) — metamorphic

Schist

Mica Schist (Composition typically involves Muscovite, Biotite, Quartz, and Feldspar)

metamorphic
Green Aventurine (Silicon Dioxide (SiO2) with Fuchsite inclusions) — mineral

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

mineral
Ferruginous Sandstone (Ironstone) (Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)) — sedimentary

Ferruginous Sandstone (Ironstone)

Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)

sedimentary
Rutilated Quartz (Quartz with Rutile inclusions (SiO2 with TiO2 inclusions)) — mineral

Rutilated Quartz

Quartz with Rutile inclusions (SiO2 with TiO2 inclusions)

mineral
Milky Quartz (Quartz (SiO2)) — Mineral

Milky Quartz

Quartz (SiO2)

Mineral
Gneiss (High-grade foliated metamorphic rock) — metamorphic

Gneiss

High-grade foliated metamorphic rock

metamorphic
Granite (Granite (a common rock type, not a single mineral species)) — Igneous

Granite

Granite (a common rock type, not a single mineral species)

Igneous
Blue Aventurine (Quartzite with inclusions of Dumortierite (SiO2 + Al7(BO3)(SiO4)3O3)) — metamorphic

Blue Aventurine

Quartzite with inclusions of Dumortierite (SiO2 + Al7(BO3)(SiO4)3O3)

metamorphic
Botryoidal Quartz / Calcite Geode crust (Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3)) — mineral

Botryoidal Quartz / Calcite Geode crust

Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3)

mineral
Native Copper (Native Copper (Cu)) — mineral

Native Copper

Native Copper (Cu)

mineral
Banded Agate (Cryptocrystalline Quartz (SiO2)) — mineral

Banded Agate

Cryptocrystalline Quartz (SiO2)

mineral
Glauconitic Sandstone (Glauconitic Quartz Arenite) — sedimentary

Glauconitic Sandstone

Glauconitic Quartz Arenite

sedimentary
Granite (Orthoclase rich) (Granite (composed primarily of Quartz and Potassium Feldspar KAlSi3O8)) — igneous

Granite (Orthoclase rich)

Granite (composed primarily of Quartz and Potassium Feldspar KAlSi3O8)

igneous
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Agate

Agate (Silicon Dioxide, SiO2)

mineral
Chalcopyrite (Peacock Ore) (Chalcopyrite (CuFeS2)) — mineral

Chalcopyrite (Peacock Ore)

Chalcopyrite (CuFeS2)

mineral
Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

mineral
Sandstone (Arenite (SiO2 predominantly)) — sedimentary

Sandstone

Arenite (SiO2 predominantly)

sedimentary
Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

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

Quartz Geode

Silicon Dioxide (SiO2)

mineral