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

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Raw Carnelian (Quartz (Chalcedony) - SiO2 with Fe2O3 inclusions) — mineral

Raw Carnelian

Quartz (Chalcedony) - SiO2 with Fe2O3 inclusions

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Quartz (Quartz Pebble)

Silicon Dioxide (SiO2)

Shiva Lingam (Polished Jasper) (Cryptocrystalline Quartz (SiO2) with Iron Oxide inclusions) — sedimentary

Shiva Lingam (Polished Jasper)

Cryptocrystalline Quartz (SiO2) with Iron Oxide inclusions

Chalcedony Agate Geode / Nodule (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Chalcedony Agate Geode / Nodule

Silicon Dioxide (SiO2) - Microcrystalline Quartz

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

Amazonite

KAlSi3O8 (Potassium Feldspar / Microcline)

Banded Agate (Dyed) (SiO2 (Silicon Dioxide / Microcrystalline Quartz)) — mineral

Banded Agate (Dyed)

SiO2 (Silicon Dioxide / Microcrystalline Quartz)

Amethyst (Water-Worn Pebble) (Silicon Dioxide (SiO2 with iron impurities)) — mineral

Amethyst (Water-Worn Pebble)

Silicon Dioxide (SiO2 with iron impurities)

Rose Quartz Sphere (Silicon Dioxide (SiO2)) — mineral

Rose Quartz Sphere

Silicon Dioxide (SiO2)

Amazonite (Microcline Feldspar (KAlSi3O8)) — mineral

Amazonite

Microcline Feldspar (KAlSi3O8)

Red Jasper (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Banded Agate (Jasper-Agate) (Silicon Dioxide (SiO2) - Chalcedony Variety) — mineral

Banded Agate (Jasper-Agate)

Silicon Dioxide (SiO2) - Chalcedony Variety

Black Tourmaline (Schorl) (NaFe3+3Al6(BO3)3Si6O18(OH)4) — mineral

Black Tourmaline (Schorl)

NaFe3+3Al6(BO3)3Si6O18(OH)4

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

Quartz (Milky / Massive Quartz)

Silicon Dioxide (SiO2)

Peridotite (Olivine-bearing Xenolith) (Peridotite (predominantly Forsterite Olivine, Mg2SiO4)) — igneous

Peridotite (Olivine-bearing Xenolith)

Peridotite (predominantly Forsterite Olivine, Mg2SiO4)

Sodalite (Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Na8(Al6Si6O24)Cl2

Quartz Pebble with Mineral Inclusions (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble with Mineral Inclusions

Silicon Dioxide (SiO2)

Mookaite Jasper (Silicon Dioxide with Iron Oxide impurities (SiO2)) — mineral

Mookaite Jasper

Silicon Dioxide with Iron Oxide impurities (SiO2)

Blue Quartz (Dumortierite Quartz) (Silicon dioxide (SiO2) with inclusions of Dumortierite (Al7BO3(SiO4)3O3)) — mineral

Blue Quartz (Dumortierite Quartz)

Silicon dioxide (SiO2) with inclusions of Dumortierite (Al7BO3(SiO4)3O3)

Rainbow Moonstone (White Labradorite (var. of Anorthite), (Ca,Na)(Al,Si)4O8) — mineral

Rainbow Moonstone

White Labradorite (var. of Anorthite), (Ca,Na)(Al,Si)4O8

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

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Quartz (Herkimer Diamond variant) (Silicon Dioxide (SiO2)) — mineral

Quartz (Herkimer Diamond variant)

Silicon Dioxide (SiO2)

Red Jasper (Silicon dioxide with iron oxide inclusions (SiO2 + Fe2O3)) — sedimentary

Red Jasper

Silicon dioxide with iron oxide inclusions (SiO2 + Fe2O3)

Quartzite with Chalcedony (Metamorphosed Quartz-rich Sandstone (SiO2)) — metamorphic

Quartzite with Chalcedony

Metamorphosed Quartz-rich Sandstone (SiO2)

Yellow Jasper (Silicon Dioxide (SiO2) with iron impurities) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron impurities

Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Prehnite (Prehnite - Ca2Al(AlSi3O10)(OH)2) — mineral

Prehnite

Prehnite - Ca2Al(AlSi3O10)(OH)2

Red Jasper (Silicon Dioxide (SiO2) with Iron Oxide impurities) — mineral

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide impurities

Yellow Agate (Chalcedony) (Silicon Dioxide (SiO2)) — sedimentary

Yellow Agate (Chalcedony)

Silicon Dioxide (SiO2)

Herkimer Diamond (Quartz (Silicon Dioxide) - SiO2) — mineral

Herkimer Diamond

Quartz (Silicon Dioxide) - SiO2

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Larimar (Blue Pectolite (NaCa2Si3O8(OH))) — mineral

Larimar

Blue Pectolite (NaCa2Si3O8(OH))

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Amethyst (Tumbled) (Amethyst (SiO2 with iron impurities)) — mineral

Amethyst (Tumbled)

Amethyst (SiO2 with iron impurities)

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

Amethyst

Silicon dioxide (SiO2) with iron impurities

Unakite (Unakite (Epidotized Granite)) — metamorphic

Unakite

Unakite (Epidotized Granite)

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

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Red Jasper (Silicon Dioxide (SiO2) with Hematite inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Unakite (Unakite (altered granite containing Epidote, Orthoclase, and Quartz)) — metamorphic

Unakite

Unakite (altered granite containing Epidote, Orthoclase, and Quartz)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Amethyst (Quartz (SiO2) with iron impurities) — mineral

Amethyst

Quartz (SiO2) with iron impurities