Black Opal from Ethiopia rough 14*13mm 6ct 1.2g

This Black Opal from Ethiopia rough 14*13mm weighs 6ct or 1.2g.

Opal is an amorphous rock, lacking a crystalline structure. There are three basic types of precious opal: boulder opal, black opal and white opal. Black and White Opal have distinct healing properties of their own. There are also other types of Opal, including Fire Opal from Mexico, Green Opal from Madagascar and Pink Opal from Australia. Boulder Opal is mined in Queensland, Australia. Black Opal is the most precious and rare form. The original true Black Opal is found only at Lightning Ridge, NSW, Australia. This newly found Black Opal from Ethiopia has a similar appearance and colour.