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TOURMALINE CATS EYE 6.44 Cts OVAL SHAPE NATURAL SRI LANKA LOOSE GEMSTONE – 20651

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1 in stock

$290.00

Carats 6.44
Size 13.9 x 8.8 mm
Color Dark Green
Clarity VC
Shape Oval
Treatment None
Origin Sri Lanka
Location Colombo, Sri Lanka
Price $ 290.00
  • Estimated delivery time 10-14 days
  • Return Accepted within 30 days.
SKU: 20651

Product details

100% Natural – Not treated in any way.
Rare Collectors Gem
Suitable for Museums,Institutions and Students of Gemology.
Clean Gems are rare.
Beautiful sharp Catseye effect.
Among the Rarest of gemstones.

Refractive Index:1.624(+.005, -.005) – 1.644(+.006, -.006)
Hardness: 7-7.5
Chemical Comp: (NaCa)(LI,MgFe,Al)9B3Si6(O,OH)31
Density: 3.06 (.05, +.15)
Crystal Group: Hexagonal

Some Tourmalines contain tiny, parallel inclusions, causing them to display a strong chatoyancy and are cut en-cabochon to cats-eyes, which are rare- a collector’s gem. Tourmaline comes from the Singhalese (Sri Lankan) words ‘tura mali’ – gem with several colors. Tourmalines come in a variety of colors, some have two or more colors, some even color-changing.


 

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