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

Aquamarine (Small Beads) (Beryl (Be3Al2Si6O18 with traces of iron)) — gemstone

Aquamarine (Small Beads)

Beryl (Be3Al2Si6O18 with traces of iron)

Dyed Purple Agate Sliced Tablet (Silicon Dioxide (SiO2), variety Chalcedony) — gemstone

Dyed Purple Agate Sliced Tablet

Silicon Dioxide (SiO2), variety Chalcedony

Turquoise (Hydrous phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)) — gemstone

Turquoise

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

Pink Sapphire (Corundum (Al2O3 with chromium and iron traces)) — gemstone

Pink Sapphire

Corundum (Al2O3 with chromium and iron traces)

Blue Sapphire (Corundum (Al2O3 with Cr, Fe, and Ti trace elements)) — gemstone

Blue Sapphire

Corundum (Al2O3 with Cr, Fe, and Ti trace elements)

Ruby (Corundum (Aluminum Oxide, Al2O3)) — gemstone

Ruby

Corundum (Aluminum Oxide, Al2O3)

Amethyst (Faceted) (Silicon Dioxide with iron impurities (SiO2)) — gemstone

Amethyst (Faceted)

Silicon Dioxide with iron impurities (SiO2)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Diamond (Round Brilliant Cut) (Carbon (C)) — gemstone

Diamond (Round Brilliant Cut)

Carbon (C)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Carnelian (Carnelian (microcrystalline quartz, SiO2)) — gemstone

Carnelian

Carnelian (microcrystalline quartz, SiO2)

Blue Topaz (Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)) — gemstone

Blue Topaz

Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)

Moonstone (Orthoclase Feldspar ((K,Na)AlSi3O8)) — gemstone

Moonstone

Orthoclase Feldspar ((K,Na)AlSi3O8)

Rose Quartz (SiO2 (Silicon Dioxide)) — gemstone

Rose Quartz

SiO2 (Silicon Dioxide)

Ruby (Corundum) (Aluminum oxide (Al2O3) with Chromium traces) — gemstone

Ruby (Corundum)

Aluminum oxide (Al2O3) with Chromium traces

Sapphire (Corundum (Al2O3)) — gemstone

Sapphire

Corundum (Al2O3)

Rose Quartz (SiO2 (Silicon Dioxide)) — gemstone

Rose Quartz

SiO2 (Silicon Dioxide)

Titanium Aura Quartz (Titanium-coated Silicon Dioxide (SiO2)) — gemstone

Titanium Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Emerald (Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities) — gemstone

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

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

Larimar

Blue Pectolite (NaCa2Si3O8(OH))

Emerald In Matrix (Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)) — gemstone

Emerald In Matrix

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Black Onyx (Silicon Dioxide (SiO2) - Chalcedony variety) — gemstone

Black Onyx

Silicon Dioxide (SiO2) - Chalcedony variety

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2)) — gemstone

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Rose Quartz and Cherry Quartz (Dyed Glass/Quartz) (Silicon Dioxide (SiO2) with inclusions/dye) — gemstone

Rose Quartz and Cherry Quartz (Dyed Glass/Quartz)

Silicon Dioxide (SiO2) with inclusions/dye

Diamond (C (Carbon)) — gemstone

Diamond

C (Carbon)

Rose Quartz (Silicon Dioxide (SiO2)) — gemstone

Rose Quartz

Silicon Dioxide (SiO2)

Chevron Amethyst (Silicon Dioxide (SiO2) with iron impurities) — gemstone

Chevron Amethyst

Silicon Dioxide (SiO2) with iron impurities

Black Diamond (Carbonado) (Carbonado (Polycrystalline Diamond)) — gemstone

Black Diamond (Carbonado)

Carbonado (Polycrystalline Diamond)

Diamond (C) — gemstone

Diamond

C

Diamond (C) — gemstone

Diamond

C

Diamond (or Diamond Simulant) (Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia ZrO2)) — gemstone

Diamond (or Diamond Simulant)

Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia ZrO2)

Cubic Zirconia (Zirconium dioxide (ZrO2)) — gemstone

Cubic Zirconia

Zirconium dioxide (ZrO2)

Diamond (or Diamond Simulant) (Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia ZrO2)) — gemstone

Diamond (or Diamond Simulant)

Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia ZrO2)

Diamond (or Simulant) (Carbon (C) or various simulants (e.g., Cubic Zirconia)) — gemstone

Diamond (or Simulant)

Carbon (C) or various simulants (e.g., Cubic Zirconia)

Diamond (or Diamond Simulant) (Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia - ZrO2, Moissanite - SiC)) — gemstone

Diamond (or Diamond Simulant)

Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia - ZrO2, Moissanite - SiC)

Diamond (or Diamond Simulant) (Carbon (C)) — gemstone

Diamond (or Diamond Simulant)

Carbon (C)

Diamond (Faceted) (Carbon (C)) — gemstone

Diamond (Faceted)

Carbon (C)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Emerald in Matrix (Tumbled) (Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities) — gemstone

Emerald in Matrix (Tumbled)

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Fire Agate (Silicon Dioxide with Limonite (SiO2 + FeO(OH)·nH2O)) — gemstone

Fire Agate

Silicon Dioxide with Limonite (SiO2 + FeO(OH)·nH2O)

Opalite (Man-made opalescent glass) — gemstone

Opalite

Man-made opalescent glass