6x4mm Natural Ethiopian Welo Opal 25 Pieces Cabochon Oval Calibrated Size Multi Fire Opal Loose Gemstone 6x4mm Natural Ethiopian Welo Opal 25 Pieces Cabochon Oval Calibrated Size Multi Fire Opal Loose Gemstone Wholesale Lot For Sale Gemstone Name :- Ethiopian Welo Opal, Gemstone Size:- 6x4mm, Gemstone Cut : Cabochon Gemstone Shape :- Oval, Gemstone Clarity :- Transparent, More Beautiful Then Picture Gemstone Hardness :- 5.5 - 6.5 Mohs, Country Of Origin :- Ethiopia, Dimension Type :- Calibrated Color may not appear exactly as in real life due to variation between computer monitor resolution and lights