| Quantity
: |
1 |
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| Carats
: |
3.90 |
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| Size
: mm |
10.16 Round |
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| Color
: |
Light Grey |
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| Clarity
: |
Very Clean, Translucent |
|
| See
Clarity Scale |
|
| Shape
: |
Round, Cabochon |
|
| Treatment : |
None |
|
| Origin |
Sri Lanka |
|
| Location
: |
Colombo, Sri Lanka |
|
SELLING
PRICE US $ 85.00 |
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| |
Collectors Gem! Suitable for Museums, Institutions
and Students of Gemology
Among the Rarest of gemstones
Natural gem Free of any Treatment |
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| R.I. : 1.741 - 1.760 |
Hardness : 8.5 |
| Chemical Comp. : |
BeAl 2 O 4 |
| Density : |
3.73 |
| Crystal Group : |
Orthorhombic |
Rarely some Chrysoberyl display a 4 Rayed Star which are extremely rare - a collectors gem. Fine inclusions in the stone are responsible for this phenomenon called chatoyancy.
The incident light is reflected in such a way that that a bright strip of light appears running perpendicular to the inclusions. |
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