TOURMALINE GOLDEN BROWN 5.42 Cts OCTAGON NATURAL SRI LANKA LOOSE GEMSTONE 21279
$340.00
| Carats | 5.42 |
| Size | 12.50 x 9.65 mm |
| Color | Golden Brown |
| Clarity | VC |
| Shape | Octagon |
| Treatment | None |
| Origin | Sri Lanka |
| Location | Colombo, Sri Lanka |
| Price | $Â 340.00 |
- Estimated delivery time 10-14 days
- Return Accepted within 30 days.
Product details
100% Natural – Not treated in any way.
Rare Collectors Gem
Suitable for Museums,Institutions and Students of Gemology.
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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