Glittering Stones >> Semi Precious Stones >> Demantoid

Semi Precious Stone Demantoid

Demantoid is the green gemstone variety of the mineral andradite. It is a member of garnet group and the andradite is the calcium, iron rich garnet. Demantoid is an expensive and rare of garnet gemstones with fine specimens pricing thousands of dollars per carat.

The appearance of demantoid is green, but exact shade ranged from light yellowish peridot green to nearby colors of fine emerald. Demantoid also has a high refractive index of 1.80 to 1.89 and the chemical formula is Ca3Fe2(SiO4)3 with chromium. The gemstones with more intense green coloration are more highly valued, but lighter stones display substantially more fire.

Historical Facts of Demantoid Refractive Index 1.880 - 1.889 Chemical Composition Ca3Fe2(SiO4)3 Hardness 6.5 Density 3.84 Crystal Group Cubic Color Green, Yellow green Ocurrence Russia, Namibia, Iran, South Africa

Gemstone Demantoid Jewelry

Demantoid Bracelet

Demantoid Earrings

Demantoid Necklace

Demantoid Ring