Lightning Ridge knobby opal formation rough 6.50cts Bright Blues Collect or chase 13x13x9mm Lot B4-A279 ToClear The fire is well-positioned and

The fire is well-positioned and ready to be exposed and shaped into something special

Ideal for those who enjoy sorting and chasing value through testing and trimming

or collect

This 240ct parcel of Lightning Ridge black dark crystal potch includes pieces ranging from 18mm to chip size

Carat Weight: 3

Lightning Ridge knobby opal formation rough 6.50cts Bright Blues Collect or chase 13x13x9mm Lot B4-A279 ToClear The fire is well-positioned andAuction Listing for Bid 4. com Lot Title: Lightning Ridge Knobby Opal Formation Rough 6. 50cts Bright Blues, Collect or Chase Lot Number: B4 A279 Details: Origin: Lightning Ridge, Australia Type: Knobby Opal Formation Rough Carat Weight: 6. 50cts Size: 13x13x9mm Features: Bright Blues showing, suitable to collect or cut. Description: This 6. 50ct Lightning Ridge knobby opal rough features striking Bright Blue colour zones on a solid knobby formation.