Rock Identifier

Category

Gemstone

Browse gemstone specimens identified by the Rock Identifier community.

Learn about Gemstone in the encyclopedia

Achroite

Alexandrite

Almandine Garnet

Almandine Garnet

Amber

Andamooka Opal

Andesine

Andesine-Labradorite

Andesine-Labradorite

Andradite Garnet

Andradite Garnet

Ant Hill Garnet

Ant Hill Garnet

Aquamarine

Australian Opal

Australian Opal

Aventurine Feldspar

Aventurine Feldspar

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

Quartz (Milky/Smoky Quartz)

Silicon Dioxide (SiO2)

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

Quartz (Milky/Smoky Quartz)

Silicon Dioxide (SiO2)

Quartz Pebble (Tumbled / Beach Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble (Tumbled / Beach Pebble)

Silicon Dioxide (SiO2)

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

Aquamarine

Beryl (Be3Al2Si6O18 with iron impurities)

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

Lepidolite (Tumbled)

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

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Unakite (Altered Granite (Plagioclase-Epidote-Quartz Rock)) — metamorphic

Unakite

Altered Granite (Plagioclase-Epidote-Quartz Rock)

Porphyry (Polished Pebble) (Porphyritic Rhyolite / Andesite) — igneous

Porphyry (Polished Pebble)

Porphyritic Rhyolite / Andesite

Lepidolite with Mica / Quartz (K(Li,Al)3(Si,Al)4O10(F,OH)2) — mineral

Lepidolite with Mica / Quartz

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

Aventurine (Silicon Dioxide (Quartz with Fuchsite inclusions) - SiO2) — mineral

Aventurine

Silicon Dioxide (Quartz with Fuchsite inclusions) - SiO2

Green Aventurine (Quartzite with Fuchsite inclusions (SiO2 with K(Al,Cr)2(AlSi3O10)(OH)2)) — metamorphic

Green Aventurine

Quartzite with Fuchsite inclusions (SiO2 with K(Al,Cr)2(AlSi3O10)(OH)2)

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Black Garnet (Melanite) (Andradite, Ca3Fe2(SiO4)3) — mineral

Black Garnet (Melanite)

Andradite, Ca3Fe2(SiO4)3

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Jasper (Red-Brown Variety) (Microcrystalline Quartz (SiO2) with high Iron Oxide content) — sedimentary

Jasper (Red-Brown Variety)

Microcrystalline Quartz (SiO2) with high Iron Oxide content

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

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Green Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Green Chert

Microcrystalline Quartz (SiO2)

Sodalite (Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Na8(Al6Si6O24)Cl2

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Chiastolite (Andalusite (Al2SiO5) with carbonaceous inclusions) — metamorphic

Chiastolite

Andalusite (Al2SiO5) with carbonaceous inclusions

Microcline (Potassium Feldspar) (Microcline (KAlSi3O8)) — mineral

Microcline (Potassium Feldspar)

Microcline (KAlSi3O8)

Raw Ruby (Corundum) (Corundum (Aluminum Oxide, Al2O3)) — mineral

Raw Ruby (Corundum)

Corundum (Aluminum Oxide, Al2O3)

Chert (Jasper/Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper/Flint)

Silicon Dioxide (SiO2)

Strawberry Quartz (Hematoid Quartz) (Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)) — mineral

Strawberry Quartz (Hematoid Quartz)

Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)

Bloodstone (Heliotrope (Silicon dioxide, SiO2)) — mineral

Bloodstone

Heliotrope (Silicon dioxide, SiO2)

Amazonite (K(AlSi3O8) - Potassium Aluminum Silicate) — mineral

Amazonite

K(AlSi3O8) - Potassium Aluminum Silicate

Amazonite (Microcline (KAlSi3O8)) — mineral

Amazonite

Microcline (KAlSi3O8)

Orange Quartz (Silicon Dioxide (SiO2)) — mineral

Orange Quartz

Silicon Dioxide (SiO2)

Lapis Lazuli (Polished) (Lapis Lazuli (primarily Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)) — metamorphic

Lapis Lazuli (Polished)

Lapis Lazuli (primarily Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Quartz (Milky/Smoky variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Smoky variety)

Silicon Dioxide (SiO2)

Sodalite (Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Na8(Al6Si6O24)Cl2

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

Quartz (Clear/Crystalline)

Silicon Dioxide (SiO2)

Quartz (Rose Quartz or Iron-stained Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Rose Quartz or Iron-stained Quartz)

Silicon Dioxide (SiO2)

Lake Superior Agate (Silicon Dioxide (SiO2) - Banded Chalcedony) — mineral

Lake Superior Agate

Silicon Dioxide (SiO2) - Banded Chalcedony

Rhodonite (Rhodonite ((Mn2+,Fe2+,Mg,Ca)SiO3)) — metamorphic

Rhodonite

Rhodonite ((Mn2+,Fe2+,Mg,Ca)SiO3)

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Quartz (Milky / Clear Quartz Fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky / Clear Quartz Fragment)

Silicon Dioxide (SiO2)

Sunstone (Plagioclase Feldspar (Na,Ca)(Si,Al)3O8) — mineral

Sunstone

Plagioclase Feldspar (Na,Ca)(Si,Al)3O8

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Chrysocolla (with Malachite / Secondary Copper Minerals) (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O) — mineral

Chrysocolla (with Malachite / Secondary Copper Minerals)

Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)