KONERUPINE GREEN 1.59 CTS 19377 – SRI LANKA NATURAL GEMSTONE

100% Natural – Not treated in any way.
Rare Colectors Gem.
Suitable for Museums,Institutions and Students of Gemology.
Will make a Gorgeous Ring or Pendent accented with Diamonds.
Gem with High Lustre and Good Clarity.
Large Sizes are Extremely Rare!
Among the Rarest of gemstones.

Refractive Index: 1.665 – 1.683
Hardness: 6.50
Chemical Comp: Mg4 (Al, Fe)
6(Si, Al, B)5O21(OH),
Density: 3.25 - 3.35
Crystal Group: Orthorhombic

Konerupine is a rare gem; Sri Lanka is the main source country. This gem is pleochroic and comes in Green brown and yellow green.