2 Nice Rubbed Coober Pedy Shell Opal Specimens 91cts Multicolour FIres Mussell Shells AustraliaI have for sale a Nice Pair of Rubbed Rough Mussell Shell Specimen Opals from Coober Pedy Australia. These 2 weigh 91cts in total. They are both Half Shells, Not from the same shell. They have Multicolour Fires through the White Milky Base Opal, also some Slight Sand, and a few natural cazes aswell. Each has got sand through the core of the piece. These are not Solid Opals. Superb Specimen pieces, polish them up for Cabinet specimens. You dont often