Chemical Formula Be3Al2SiO6
Color White, Colorless
Hardness 7.5 – 8.0
Refractive Index 1.57 – 1.58
SG 2.6 – 2.8
Double Refraction .006
Cleavage 3,1 – basal
Mineral Class Beryl
All Goshenite gems are faceted from colorless crystals; white Goshenite is usually opaque and never used a gemstone. The name Goshenite originates from the type locality of Goshen, Hampshire Co., Massachusetts, where Goshenite was first described, but this locality has produced few specimens of interest. Since Goshenite is much more common than the other Beryl gem forms, only very clean and transparent specimens are faceted as gemstones. Goshenite is sometimes coated with a green foil and made to resemble Emerald, as its physical properties are identical to Emerald.
Goshenite is used as a minor colorless gemstone, though it is more often faceted for collectors rather than for mainstream jewelry.
Goshenite TREATMENTS AND ENHANCEMENTS
Due to its relative availability and inexpensive prices, Goshenite gemstones are never treated or enhanced.
Goshenite is found in many of the Aquamarine localities, especially in Brazil, Russia, Pakistan, China, Burma (Myanmar), and Namibia.
Goshenite is similar to the other colorless gems such as Quartz, White Topaz, White Sapphire, and White Zircon. It can also resemble Diamond, but lacks the fire and dispersion and is also much softer.