Learn about various properties (chemical composition, classification, crystal system & form, hardness, specific gravity, refractive index, inclusions, spectrum, treatments, simulants etc.) of gemstones.
Organic Gemstones
Inorganic Gemstones
- Amblygonite
- Andalusite
- Anglesite
- Apatite
- Aragonite
- Axinite
- Azurite
- Barite
- Benitoite
- Beryl
- Beryllonite
- Brazilianite
- Calcite
- Cassiterite
- Celestite
- Cerussite
- Chalcedony
- Chrysoberyl
- Chrysocolla
- Corundum
- Cuprite
- Danburite
- Datolite
- Diamond
- Diopside
- Dioptase
- Dolomite
- Dumortierite
- Ekanite
- Enstatite
- Epidote
- Euclase
- Feldspar
- Fluorite
- Fuchsite
- Gadolinium Gallium Garnet
- Garnet
- Gypsum
- Hambergite
- Hauyne
- Hematite
- Howlite
- Hypersthene
- Idocrase
- Iolite
- Jade
- Kornerupine
- Kyanite
- Lapis Lazuli
- Lazulite
- Malachite
- Meerschaum
- Natural Glass
- Opal
- Peridot
- Petalite
- Phenakite
- Phosphophyllite
- Prehnite
- Pyrite
- Quartz
- Rhodochrosite
- Rhodonite
- Sapphirine
- Scapolite
- Scheelite
- Serpentine
- Sillimanite
- Sinhalite
- Smithsonite
- Sodalite
- Sphalerite
- Sphene
- Spinel
- Spodumene
- Staurolite
- Strontium Titanate
- Sugilite
- Synthetic Cubic Zirconia
- Synthetic Moissanite
- Synthetic Rutile
- Taaffeite
- Topaz
- Tourmaline
- Tugtupite
- Turquoise
- Yttrium Aluminium Garnet
- Zircon
- Zoisite