Rock Identifier

Category

Mineral (Gemstone)

Browse mineral (gemstone) specimens identified by the Rock Identifier community.

Learn about Mineral (Gemstone) in the encyclopedia

Red Garnet

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Buergerite

Tumbled garnet (probable almandine) (Almandine garnet, Fe₃Al₂(SiO₄)₃; visual identification is uncertain from the image) — gemstone

Tumbled garnet (probable almandine)

Almandine garnet, Fe₃Al₂(SiO₄)₃; visual identification is uncertain from the image

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Aura Rose Quartz (SiO2 (Silicon Dioxide with Titanium/Gold coating)) — mineral

Aura Rose Quartz

SiO2 (Silicon Dioxide with Titanium/Gold coating)

Ruby (faceted gemstone in a ring) (Corundum, Al₂O₃; red color typically from trace chromium) — gemstone

Ruby (faceted gemstone in a ring)

Corundum, Al₂O₃; red color typically from trace chromium

Quartz Geode / Druzy Quartz Node (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode / Druzy Quartz Node

Silicon Dioxide (SiO2)

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

Amethyst

Quartz (Silicon Dioxide with iron impurities, SiO2)

Amazonite (K(AlSi3O8) (Microcline Feldspar)) — mineral

Amazonite

K(AlSi3O8) (Microcline Feldspar)

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

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Amazonite (Amazonite (Microcline Feldspar) - KAlSi3O8) — mineral

Amazonite

Amazonite (Microcline Feldspar) - KAlSi3O8

Amazonite (Microcline (KAlSi3O8) with lead impurities) — mineral

Amazonite

Microcline (KAlSi3O8) with lead impurities

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — gemstone

Amethyst

Silicon Dioxide (SiO2) with iron impurities

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Prehnite with Epidote inclusions (Ca2Al(AlSi3O10)(OH)2) — mineral

Prehnite with Epidote inclusions

Ca2Al(AlSi3O10)(OH)2

Kunzite (Spodumene (LiAlSi2O6)) — mineral

Kunzite

Spodumene (LiAlSi2O6)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

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

Citrine

Silicon Dioxide with iron impurities (SiO2)

Aquamarine (Beryl (Be3Al2Si6O18 with Fe impurities)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18 with Fe impurities)

Garnet (likely Almandine or Pyrope) (Garnet (Group Name), Fe3Al2(SiO4)3 or Mg3Al2(SiO4)3) — mineral

Garnet (likely Almandine or Pyrope)

Garnet (Group Name), Fe3Al2(SiO4)3 or Mg3Al2(SiO4)3

Rutilated quartz crystal (Quartz, silicon dioxide (SiO₂), containing rutile inclusions (TiO₂)) — mineral

Rutilated quartz crystal

Quartz, silicon dioxide (SiO₂), containing rutile inclusions (TiO₂)

Amazonite (Microcline (KAlSi3O8) with trace Lead (Pb)) — mineral

Amazonite

Microcline (KAlSi3O8) with trace Lead (Pb)

Amazonite (Microcline (KAlSi3O8 variant)) — mineral

Amazonite

Microcline (KAlSi3O8 variant)

Amethyst (Silicon dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon dioxide (SiO2) with iron impurities

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Amethyst and Titanium Treated Druzy (Silicon Dioxide (SiO2) with trace impurities including Iron) — mineral

Amethyst and Titanium Treated Druzy

Silicon Dioxide (SiO2) with trace impurities including Iron

Peach Moonstone (Orthoclase (Potassium Aluminum Silicate, KAlSi3O8)) — mineral

Peach Moonstone

Orthoclase (Potassium Aluminum Silicate, KAlSi3O8)

Chrysocolla on Quartz (Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O) with Quartz (SiO2)) — mineral

Chrysocolla on Quartz

Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O) with Quartz (SiO2)

Amethyst (Silicon dioxide with iron impurities (SiO2)) — mineral

Amethyst

Silicon dioxide with iron impurities (SiO2)

Sunstone (Feldspar) (Plagioclase Feldspar (Na,Ca)(Al,Si)4O8) — mineral

Sunstone (Feldspar)

Plagioclase Feldspar (Na,Ca)(Al,Si)4O8

Amazonite (Potassium Aluminum Silicate (KAlSi3O8)) — mineral

Amazonite

Potassium Aluminum Silicate (KAlSi3O8)

Alexandrite (Chrysoberyl (BeAl2O4)) — mineral

Alexandrite

Chrysoberyl (BeAl2O4)

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

Amethyst

SiO2 (Silicon Dioxide with iron impurities)

Smoky Quartz (Silicon Dioxide (SiO2) with aluminum impurities) — mineral

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

Amethyst (Quartz (Silicon Dioxide, SiO2)) — gemstone

Amethyst

Quartz (Silicon Dioxide, SiO2)

Amethyst (Quartz (SiO2)) — mineral

Amethyst

Quartz (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Lake Superior Agate (Silicon Dioxide (Chalcedony variety)) — sedimentary

Lake Superior Agate

Silicon Dioxide (Chalcedony variety)

Emerald (Beryl (Be3Al2(SiO3)6)) — gemstone

Emerald

Beryl (Be3Al2(SiO3)6)

Amethyst Cluster (Silicon Dioxide with Iron impurities (SiO2)) — mineral

Amethyst Cluster

Silicon Dioxide with Iron impurities (SiO2)

Chrysoprase (Silicon Dioxide with Nickel inclusions (SiO2)) — gemstone

Chrysoprase

Silicon Dioxide with Nickel inclusions (SiO2)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Aquamarine (Beryl (Be3Al2(SiO3)6)) — gemstone

Aquamarine

Beryl (Be3Al2(SiO3)6)

Raw Quartz (Silicon Dioxide (SiO2)) — mineral

Raw Quartz

Silicon Dioxide (SiO2)