Rock Identifier

Category

Mineral And Organic Gemstone

Browse mineral and organic gemstone specimens identified by the Rock Identifier community.

Learn about Mineral And Organic Gemstone in the encyclopedia

Black Shale

Black Shale

Jet

Jet

Malachite

Malachite

Bumblebee Jasper

Bumblebee Jasper

Andesine

Andesine

Aragonite

Aragonite

Dolomite

Dolomite

Albite

Albite

Pyrrhotite

Pyrrhotite

Andesite

Andesite

Andalusite

Andalusite

Andamooka Opal

Andamooka Opal

Bloodstone (Chalcedony (Quartz)) — Mineral

Bloodstone

Chalcedony (Quartz)

Garnet (Garnet Group (Silicate Minerals)) — mineral

Garnet

Garnet Group (Silicate Minerals)

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Garnet (Garnet Group (e.g., Almandine Fe3Al2(SiO4)3 or Pyrope Mg3Al2(SiO4)3)) — mineral

Garnet

Garnet Group (e.g., Almandine Fe3Al2(SiO4)3 or Pyrope Mg3Al2(SiO4)3)

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Variety: Citrine or Iron-stained Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Variety: Citrine or Iron-stained Quartz)

Silicon Dioxide (SiO2)

Quartz (specifically Rose or Smoky tinted Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (specifically Rose or Smoky tinted Quartz)

Silicon Dioxide (SiO2)

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)

Moonstone (Orthoclase (Potassium Aluminum Silicate), Formula: (K,Na)AlSi3O8) — mineral

Moonstone

Orthoclase (Potassium Aluminum Silicate), Formula: (K,Na)AlSi3O8

Star Ruby (Corundum (Al2O3 with chromium and rutile inclusions)) — mineral

Star Ruby

Corundum (Al2O3 with chromium and rutile inclusions)

Black Pearl (Tahitian Style) (Calcium Carbonate (Aragonite) - CaCO3 with Conchiolin) — mineral

Black Pearl (Tahitian Style)

Calcium Carbonate (Aragonite) - CaCO3 with Conchiolin

Carnelian (Carnelian (SiO2)) — mineral

Carnelian

Carnelian (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Rough Quartz (var. Citrine or Yellow Quartz) (Silicon Dioxide (SiO2)) — mineral

Rough Quartz (var. Citrine or Yellow Quartz)

Silicon Dioxide (SiO2)

Amazonite (K(AlSi3O8), Microcline (potassium feldspar)) — mineral

Amazonite

K(AlSi3O8), Microcline (potassium feldspar)

Picture Jasper (Silicon Dioxide (SiO2) with iron oxide and organic impurities) — sedimentary

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide and organic impurities

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Epidote (Epidote (Ca2(Al, Fe)3(SiO4)3(OH))) — metamorphic

Epidote

Epidote (Ca2(Al, Fe)3(SiO4)3(OH))

Citrine (Heat-treated Amethyst) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Citrine (Heat-treated Amethyst)

Silicon Dioxide (SiO2) with iron impurities

Quartz (Citrine or Smoky variant) (Silicon Dioxide (SiO2)) — mineral

Quartz (Citrine or Smoky variant)

Silicon Dioxide (SiO2)

Oceanside Agate (Orbicular Agate) (Silicon Dioxide (SiO2) - Variety of Chalcedony) — mineral

Oceanside Agate (Orbicular Agate)

Silicon Dioxide (SiO2) - Variety of Chalcedony

Quartz (Clear/White) (Silicon Dioxide (SiO2)) — mineral

Quartz (Clear/White)

Silicon Dioxide (SiO2)

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

Quartz (Crystal)

Silicon Dioxide (SiO2)

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

Rhodonite

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

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

Malachite

Copper(II) carbonate hydroxide, Cu2CO3(OH)2

Quartz Crystal Cluster (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Chert (varieties include Flint or Jasper) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (varieties include Flint or Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Rhodochrosite (Manganese Carbonate (MnCO3)) — mineral

Rhodochrosite

Manganese Carbonate (MnCO3)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

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

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Clear Quartz (Silicon dioxide (SiO2)) — mineral

Clear Quartz

Silicon dioxide (SiO2)

Amazonite (Microcline (KAlSi3O8)) — mineral

Amazonite

Microcline (KAlSi3O8)

Amazonite (K(AlSi3O8) - Potassium Feldspar (Microcline variant)) — mineral

Amazonite

K(AlSi3O8) - Potassium Feldspar (Microcline variant)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Beryl (Emerald Variety) (Beryllium aluminum silicate (Be3Al2(SiO3)6) with chromium/vanadium traces) — mineral

Beryl (Emerald Variety)

Beryllium aluminum silicate (Be3Al2(SiO3)6) with chromium/vanadium traces

Green Tourmaline (Verdelite) (Schorl-Elbaite series (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)) — mineral

Green Tourmaline (Verdelite)

Schorl-Elbaite series (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)

Amazonite (Potassium Aluminum Silicate (KAlSi3O8)) — mineral

Amazonite

Potassium Aluminum Silicate (KAlSi3O8)

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

Milky Quartz (Quartz Vein)

Silicon Dioxide (SiO2)