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

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

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Blue Tiger's Eye (Crocidolite in Quartz (altered)) — Mineral

Blue Tiger's Eye

Crocidolite in Quartz (altered)

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)

Moonstone (Feldspar) (Orthoclase feldspar, (K,Na)AlSi3O8) — mineral

Moonstone (Feldspar)

Orthoclase feldspar, (K,Na)AlSi3O8

Sapphire in a ring (Corundum (Al2O3)) — mineral

Sapphire in a ring

Corundum (Al2O3)

Amethyst (Silicon Dioxide (SiO2)) — mineral

Amethyst

Silicon Dioxide (SiO2)

Libyan Desert Glass (Libyan Desert Glass (Tektite / Impact Glass)) — meteorite

Libyan Desert Glass

Libyan Desert Glass (Tektite / Impact Glass)

Faceted brown gemstone in a silver-colored setting (Likely smoky quartz (SiO₂), but the photo cannot reliably distinguish it from other brown gems or glass) — gemstone

Faceted brown gemstone in a silver-colored setting

Likely smoky quartz (SiO₂), but the photo cannot reliably distinguish it from other brown gems or glass

Larimar (Pectolite (NaCa2Si3O[OH])) — mineral

Larimar

Pectolite (NaCa2Si3O[OH])

Turquoise (CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminium phosphate)) — mineral

Turquoise

CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminium phosphate)

Pearl (Calcium carbonate (CaCO3) as Aragonite or Calcite) — mineral

Pearl

Calcium carbonate (CaCO3) as Aragonite or Calcite

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

Amazonite

K(AlSi3O8), Microcline (potassium feldspar)

Amethyst (Purple variety of quartz; silicon dioxide (SiO₂)) — gemstone

Amethyst

Purple variety of quartz; silicon dioxide (SiO₂)

Amethyst beads (Amethyst, purple quartz (SiO₂)) — gemstone

Amethyst beads

Amethyst, purple quartz (SiO₂)

Smoky Quartz with Inclusions (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz with Inclusions

Silicon Dioxide (SiO2)

Rough Emerald (Emerald (Beryl), Be3Al2(SiO3)6) — mineral

Rough Emerald

Emerald (Beryl), Be3Al2(SiO3)6

Agate (Silicon dioxide (SiO2)) — mineral

Agate

Silicon dioxide (SiO2)

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

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Amethyst (Pale/Raw Crystal) (Silicon dioxide with iron impurities (SiO2)) — mineral

Amethyst (Pale/Raw Crystal)

Silicon dioxide with iron impurities (SiO2)

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

Quartz with Inclusions

Silicon Dioxide (SiO2)

Jadeite (Jadeite (NaAlSi2O6)) — mineral

Jadeite

Jadeite (NaAlSi2O6)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Yellow Quartz (Citrine Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine Quartz)

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Tumbled Amethyst (Silicon Dioxide (SiO2)) — mineral

Tumbled Amethyst

Silicon Dioxide (SiO2)

Blue Quartz (Silicon Dioxide (SiO2)) — mineral

Blue Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Quartz (Iron-Stained / Yellow Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-Stained / Yellow Quartz)

Silicon Dioxide (SiO2)

Clear Quartz / Diamond (untested) (Silicon Dioxide (SiO2) or Carbon (C)) — mineral

Clear Quartz / Diamond (untested)

Silicon Dioxide (SiO2) or Carbon (C)

Pink Quartz / Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Pink Quartz / Rose Quartz

Silicon Dioxide (SiO2)

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

Yellow Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Green Aventurine (Quartz with Fuchsite inclusions (SiO2)) — mineral

Green Aventurine

Quartz with Fuchsite inclusions (SiO2)

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

Quartz (Rose Quartz Pebble)

Silicon Dioxide (SiO2)

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

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

White Quartz

Quartz (Silicon Dioxide, SiO2)