Queensland Boulder opal 6.6cts rough / Rub / preforms Winton Bright Gem Reds & Multifires 10x6x3mm to 9x6x2.5mm WAC71

This is a Boulder opal of the Queensland opal fields. Gem Quality Boulder opal rubs showing gorgeous array of Reds & multifires  From Winton mining area , this is a opal in ironstone boulder opal Ideal preforms for a set of stunning ring stones Please note boulder opal is ironstone host rock with deposit of opal. Details: #WAC71 Weight: 6.6cts Grade: GEM GRADE Base Colour:  Boulder tone Source: Queensland Australia Field:  Winton  Size: 10x6x3mm to 9x6x2.5mm Type:   Winton Boulder rough rub Colours: Gorgeous Rainbow of multicolours to face State : In the Rough Rubbed Preformed Solid, Natural, Untreated Opal, Ironstone Host rock