#11839 Tourmaline - Color Change 4.02 cts
Rare Collectors Gem!!
  Quantity : 1
  Carats : 4.02
  Size : mm 8.1x5.95
  Color : Medium Red Yellow Green
  Clarity : Very Clean, Highly Lustrous
See Clarity Scale
  Shape : Cushion
  Treatment : None
  Origin Sri Lanka
  Location :
Colombo, Sri Lanka

SELLING PRICE US $ 79.00

 

Collectors Gem! Suitable for Museums, Institutions and Students of Gemology,

Will make a Gorgeous Ring or Pendent accented with Diamonds,

Natural gem Free of any Treatment


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R.I. : 1.577(+-.016), 1.583 (+-.017 ) Hardness : 7.5
Chemical Comp. : Be3Al2(SiO3)6
Density : 2.67-2.745
Crystal Group : Hexagonal

Sri Lanka produces a beautiful multi-colored tourmaline – a mix of red yellow and green which are more like color-changing. Some have a dominant Orange color which is very attractive and much sought-after. Multicolored gems are truly a gemological wonder, as they have an unique beauty of their own displaying different colors at different angles due to pleochroism.

The name Tourmaline comes from the Singhalese (Sri Lankan) words 'tura mali ' –Gem with several colors. There are tourmalines in a variety of colors, some have two or more colours, some even color-changing, and also a rare variety- the Cats-eye.