Opal
Ethiopia - Africa
SiO2•nH2O
Description
White opal of the variety "crystal opal", carved as a 49.10 ct. rounded cabochon, with a relatively transparent body and rainbow-like flashes that seem to float above the stone, which is typical of the opals of this mine. Furthermore, the play of colors can be seen within the body of this opal despite its transparency.
Wegel Tena, Wollo Province
From the Sanskrit upala, meaning precious stone.
Class
8 - Silicates / Tectosilicates
Dimensions (length x with x height in cm)
3.2x2.8x1.1
Hardness (Mohs)
5.5
Density (G/cm3)
2