Product details
100% Natural – Not treated in any way.
Beautiful Center-stone for an engagement Ring.
Will make a Gorgeous Ring or Pendent accented with Diamonds.
Gem with High Lustre and Good Clarity.
Large Sizes are Extremely Rare!
A Gem of Lasting Beauty.
R I:1.624(+.005,-.005)-1.644(+.006,-.006)
Hardness: 7-7.5
C Cp: (NaCa) (LI,MgFe,Al)9B3Si6(O,OH)31
Density: 3.06 (.05, +.15)
Crystal Group: Hexagonal
Tourmaline occurs in all colors, but red, green, and multicolored are the most popular gems. The name Tourmaline comes from the Singhalese (Sri Lankan) words ‘tura mali’ –Gem with in a multitude of colors, some have two or more colors, some even color-changing, and also a rare variety- the Cats-eye.
Tourmalines will often display several colors and its main feature is its marked dichroism. Green Tourmaline is very popular.
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