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

Mystic Topaz (Al2SiO4(F,OH)2 (Coated)) — gemstone

Mystic Topaz

Al2SiO4(F,OH)2 (Coated)

Aquamarine (Beryl (Be3Al2Si6O18)) — gemstone

Aquamarine

Beryl (Be3Al2Si6O18)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Smoky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Smoky quartz

Quartz (silicon dioxide, SiO₂)

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Malachite with Quartz (Cu2CO3(OH)2 + SiO2) — mineral

Malachite with Quartz

Cu2CO3(OH)2 + SiO2

Quartz with Pyrite Inclusions (Silicon Dioxide with Iron Sulfide (SiO2 + FeS2)) — mineral

Quartz with Pyrite Inclusions

Silicon Dioxide with Iron Sulfide (SiO2 + FeS2)

Quartz (Silicon dioxide (SiO2)) — mineral

Quartz

Silicon dioxide (SiO2)

Weathered Sedimentary Rock (Sedimentary Rock) — Sedimentary

Weathered Sedimentary Rock

Sedimentary Rock

Quartz (Silicon dioxide (SiO2)) — mineral

Quartz

Silicon dioxide (SiO2)

Quartz with Tourmaline inclusions (Silicon Dioxide (SiO2) with Tourmaline needles) — mineral

Quartz with Tourmaline inclusions

Silicon Dioxide (SiO2) with Tourmaline needles

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Pink Quartz (Silicon Dioxide (SiO2)) — mineral

Pink Quartz

Silicon Dioxide (SiO2)

Imperial Topaz (Aluminum Silicate Fluoride Hydroxide, Al2SiO4(F,OH)2) — gemstone

Imperial Topaz

Aluminum Silicate Fluoride Hydroxide, Al2SiO4(F,OH)2

Turquoise (CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Peridot (Olivine ((Mg, Fe)2SiO4)) — gemstone

Peridot

Olivine ((Mg, Fe)2SiO4)

Almandine Garnet (Almandine (Fe3Al2(SiO4)3)) — gemstone

Almandine Garnet

Almandine (Fe3Al2(SiO4)3)

Agate (SiO2 (Cryptocrystalline Quartz)) — gemstone

Agate

SiO2 (Cryptocrystalline Quartz)

Blue aquamarine bead bracelet (possibly pale blue chalcedony or glass imitation) (Aquamarine, a blue variety of beryl (Be₃Al₂Si₆O₁₈); identification from the image is uncertain) — gemstone

Blue aquamarine bead bracelet (possibly pale blue chalcedony or glass imitation)

Aquamarine, a blue variety of beryl (Be₃Al₂Si₆O₁₈); identification from the image is uncertain

Polished precious opal cabochon (Opal (hydrated amorphous silica, SiO₂·nH₂O)) — gemstone

Polished precious opal cabochon

Opal (hydrated amorphous silica, SiO₂·nH₂O)

Kunzite (Spodumene (Lithium Aluminium Silicate, LiAl(SiO3)2)) — gemstone

Kunzite

Spodumene (Lithium Aluminium Silicate, LiAl(SiO3)2)

Carved turquoise beads (Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O) — gemstone

Carved turquoise beads

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O

Turquoise bracelet (Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O) — gemstone

Turquoise bracelet

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O

Citrine (Silicon dioxide (SiO2)) — gemstone

Citrine

Silicon dioxide (SiO2)

Chrysoprase (Chalcedony with nickel impurities (SiO2)) — gemstone

Chrysoprase

Chalcedony with nickel impurities (SiO2)

Kunzite (Spodumene (LiAlSi2O6)) — gemstone

Kunzite

Spodumene (LiAlSi2O6)

Larimar (Pectolite (NaCa2Si3O8(OH))) — gemstone

Larimar

Pectolite (NaCa2Si3O8(OH))

Ruby (Corundum (Al2O3)) — gemstone

Ruby

Corundum (Al2O3)

Blue Topaz (Al2SiO4(F,OH)2) — gemstone

Blue Topaz

Al2SiO4(F,OH)2

Turquoise (CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Amethyst (Silicon dioxide (SiO2)) — mineral

Amethyst

Silicon dioxide (SiO2)

Olivine (Peridot) ((Mg,Fe)2SiO4) — mineral

Olivine (Peridot)

(Mg,Fe)2SiO4

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

Ametrine

Quartz (Silicon Dioxide, SiO2)

Jasper with Quartz Vein (Microcrystalline quartz (SiO2) with quartz inclusion) — sedimentary

Jasper with Quartz Vein

Microcrystalline quartz (SiO2) with quartz inclusion

Diamond-set gold ring (Diamond (crystalline carbon, C) set in a gold alloy; the metal and setting are manufactured) — gemstone

Diamond-set gold ring

Diamond (crystalline carbon, C) set in a gold alloy; the metal and setting are manufactured

Goldstone (brown goldstone) (Man-made aventurine glass, typically copper-bearing silica glass) — gemstone

Goldstone (brown goldstone)

Man-made aventurine glass, typically copper-bearing silica glass

Tumbled smoky quartz (Quartz, silicon dioxide (SiO₂), colored by irradiation and trace aluminum) — mineral

Tumbled smoky quartz

Quartz, silicon dioxide (SiO₂), colored by irradiation and trace aluminum

Diamond (Native Carbon (C)) — gemstone

Diamond

Native Carbon (C)

Jasper (Silicon dioxide (SiO2)) — Mineral / Sedimentary

Jasper

Silicon dioxide (SiO2)

Mineral / Sedimentary