BERYL CRYSTAL 16.40 Cts 19756 - NATURAL CRYSTAL PART

BERYL CRYSTAL 16.40 Cts 19756 - NATURAL CRYSTAL PART

  • $140.00

Carats 16.40
Size 51.4 X 6.4 mm
Color Light Green
Clarity VSI
Shape Crystal
Treatment None
Origin Sri Lanka
Location Colombo
Price $ 140.00
100% Natural - Not treated in any way.
Rare Collectors Gem
Suitable for Museums,Institutions and Students of Gemology.
Ideal for Designer Jewelry
Among the Rarest of gemstones.
Crystal - Natural formation shape gemstones.
Asterism (or Ray Effect) is best seen in Bright Sunlight or by focussing a Flashlight on the face of the gem.

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

Beryls are beryllium-aluminium-silicates. As pure beryl, they are colorless, but coloration is derived from impurities - into green, yellow, pink or blue. Iron colors beryl into Blue- the most beautiful sea-blue Aquamarine.
Traces of iron, and minerals containing uranium, give a colorless beryl an Intense yellow tone - the Golden beryl.


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