Product details
100% Natural – Not treated in any way.
Rare Colectors Gem.
Suitable for Museums,Institutions
and Students of Gemology.
Beautiful sharp Star effect.
Among the Rarest of gemstones.
Refractive Index: 1.741 - 1.760 Hardness: 8.5 Chemical Comp: BeAl2O4 Density: 3.73 Crystal Group: Orthorhombic
Rarely some gems display a 4 Rayed
Star which are extremely rare – a
collector’s gem. Fine inclusions in the
stone are responsible for this
phenomenon called chatoyancy.
The incident light is reflected in such a way
that a bright strip of light appears
running perpendicular to the inclusions.
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