This is an oval cabochon-cut, forest-green, natural Brazilian Emerald gemstone. It weighs 5.85cts and measures 12.5x8.5mm.
Below are the main details of this gemstone:
Shape: | Oval Cabochon-Cut | |
Colour: | Deep Forest-Green | |
Clarity: | Opaque | |
Lustre: | Good | |
Origin: | Brazil | |
Hardness: | 7.5 - 8 | |
Specific Gravity: | 2.67 - 2.84 | |
Refractive Index: | 1.56 - 1.59 | |
Chemical Composition: | Be3Al2(SiO3)6, Beryllium Aluminum Silicate | |
Crystal Structure: | Hexagonal |
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