Black opal 'Nobbies' in opal silt stone. This is an opal mineral specimen not for cutting, the black opal is Potch not precious opal. A great example of how black opal occurs. 110 grams. 8cm x 4.5cm x 6cm.
$ 30.00
$ 0.00
$ 30.00
$ 0.00
Black opal 'Nobbies' in opal silt stone. This is an opal mineral specimen not for cutting, the black opal is Potch not precious opal. A great example of how black opal occurs. 110 grams. 8cm x 4.5cm x 6cm.
$ 14.00
$ 66.30
$ 51.00
$ 77.90
$ 59.92
$ 49.00
$ 33.00
$ 36.00
$ 71.90
$ 55.31
$ 20.00
$ 83.67
$ 64.36
$ 90.71
$ 69.78
$ 18.99
