1 06 ct black opal 7x6x4mm us 400 00 add to cart. Opal is a hydrated amorphous form of silica sio 2 nh 2 o. Black opal stones for sale online direct from black opal miners and wholesalers in australia.
1 06 ct black opal 7x6x4mm us 400 00 add to cart. Opal is a hydrated amorphous form of silica sio 2 nh 2 o. Black opal stones for sale online direct from black opal miners and wholesalers in australia.