Rock Identifier

Category

Mineral

Browse mineral specimens identified by the Rock Identifier community.

Learn about Mineral in the encyclopedia

Tsilaisite

Tsilaisite

Spiderweb Jasper

Spiderweb Jasper

Mica

Mica

Lead Feldspar

Lead Feldspar

Maskelynite

Maskelynite

Liddicoatite

Liddicoatite

Sard

Sard

Kimzeyite

Kimzeyite

Knorringite

Knorringite

Zincite

Zincite

Willemite

Willemite

Plazolite

Plazolite

Pyrite and Fluorite on Quartz (Matrix Specimen) (Iron Disulfide (FeS2) and Calcium Fluoride (CaF2) with Silicon Dioxide (SiO2)) — mineral

Pyrite and Fluorite on Quartz (Matrix Specimen)

Iron Disulfide (FeS2) and Calcium Fluoride (CaF2) with Silicon Dioxide (SiO2)

Fluorite (Purple variety) (Calcium Fluoride (CaF2)) — mineral

Fluorite (Purple variety)

Calcium Fluoride (CaF2)

Greenschist (Chlorite Schist) — metamorphic

Greenschist

Chlorite Schist

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

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

Blue Lepidolite

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

Indigo Gabbro (Gabbro (MaFIC intrusive rock)) — igneous

Indigo Gabbro

Gabbro (MaFIC intrusive rock)

Quartz (Fieldstone/Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (Fieldstone/Pebble)

Silicon Dioxide (SiO2)

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

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Feldspathic Gneiss (Granite Gneiss) (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Feldspathic Gneiss (Granite Gneiss)

Gneiss (High-grade Regional Metamorphic Rock)

Yellow Aventurine (Quartz (SiO2) with inclusions) — mineral

Yellow Aventurine

Quartz (SiO2) with inclusions

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

Glacial Cobbles (predominantly Granite and Gneiss) (Mixed lithologies (Quartz, Feldspar, Mica assemblage)) — igneous and metamorphic

Glacial Cobbles (predominantly Granite and Gneiss)

Mixed lithologies (Quartz, Feldspar, Mica assemblage)

igneous and metamorphic

Azurite and Malachite (Azurite (Cu3(CO3)2(OH)2) and Malachite (Cu2CO3(OH)2)) — mineral

Azurite and Malachite

Azurite (Cu3(CO3)2(OH)2) and Malachite (Cu2CO3(OH)2)

Amethyst on Basalt (Silicon dioxide (SiO2) with trace Iron) — mineral

Amethyst on Basalt

Silicon dioxide (SiO2) with trace Iron

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Green Moss Agate (Agate (Silicon Dioxide, SiO2) with inclusions) — mineral

Green Moss Agate

Agate (Silicon Dioxide, SiO2) with inclusions

Emerald in Matrix (Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities) — gemstone

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Azurite and Malachite (Copper Carbonates: Cu3(CO3)2(OH)2 (Azurite) and Cu2CO3(OH)2 (Malachite)) — mineral

Azurite and Malachite

Copper Carbonates: Cu3(CO3)2(OH)2 (Azurite) and Cu2CO3(OH)2 (Malachite)

Tanzanite (Blue Zoisite (Ca2Al3(SiO4)3(OH))) — gemstone

Tanzanite

Blue Zoisite (Ca2Al3(SiO4)3(OH))

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

Blue Quartz

Quartz (Silicon Dioxide) with inclusions, SiO2

Pink Spinel (Magnesium Aluminum Oxide (MgAl2O4)) — gemstone

Pink Spinel

Magnesium Aluminum Oxide (MgAl2O4)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Chondrite Meteorite (Ordinary Chondrite (L or H type)) — igneous

Chondrite Meteorite

Ordinary Chondrite (L or H type)

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Rutilated Quartz (Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions) — mineral

Rutilated Quartz

Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions

Amazonite (Microcline (KAlSi3O8)) — mineral

Amazonite

Microcline (KAlSi3O8)

Tanzanite (Rough) (Blue Zoisite (Ca2Al3(SiO4)3(OH))) — mineral

Tanzanite (Rough)

Blue Zoisite (Ca2Al3(SiO4)3(OH))

Rough Citrine Quartz (Silicon Dioxide (SiO2) with iron impurities) — mineral

Rough Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Amazonite (Potassium aluminum silicate (KAlSi3O8)) — mineral

Amazonite

Potassium aluminum silicate (KAlSi3O8)

Moonstone with Black Tourmaline (Feldspar (KAlSi3O8) with inclusions of Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Moonstone with Black Tourmaline

Feldspar (KAlSi3O8) with inclusions of Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Amethyst (Amethyst (SiO2 with Iron impurities)) — mineral

Amethyst

Amethyst (SiO2 with Iron impurities)

Peacock Ore (Bornite (Cu5FeS4) or Chalcopyrite treated with acid) — mineral

Peacock Ore

Bornite (Cu5FeS4) or Chalcopyrite treated with acid

Amethyst (Geode Fragment) (Silicon Dioxide with iron impurities (SiO2)) — mineral

Amethyst (Geode Fragment)

Silicon Dioxide with iron impurities (SiO2)

Malachite and Azurite on Matrix (Cu2CO3(OH)2 (Malachite) / Cu3(CO3)2(OH)2 (Azurite)) — mineral

Malachite and Azurite on Matrix

Cu2CO3(OH)2 (Malachite) / Cu3(CO3)2(OH)2 (Azurite)

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

Prehnite

Prehnite (Ca2Al2Si3O10(OH)2)

Quartz (Druzy/Crystalline) (Silicon Dioxide (SiO2)) — mineral

Quartz (Druzy/Crystalline)

Silicon Dioxide (SiO2)

Peacock Ore (Bornite (Cu5FeS4)) — mineral

Peacock Ore

Bornite (Cu5FeS4)

Amethyst (Amethyst (Silicon Dioxide with iron impurities), SiO2) — mineral

Amethyst

Amethyst (Silicon Dioxide with iron impurities), SiO2

Ocean Jasper (Orbicular Jasper (Silicon Dioxide, SiO2)) — sedimentary

Ocean Jasper

Orbicular Jasper (Silicon Dioxide, SiO2)

Emerald (Faceted Gemstone) (Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)) — mineral

Emerald (Faceted Gemstone)

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)