The term Black Opal refers to the strongly coloured opals from Austraila, which although still not "black" are full of fiery reflective colours, shining with shades of blue, green yellow orange and many more - but they don't look "black" at all, just not the white, milky type found elsewhere in the world.
--Previous Message-- : Thank you for this great research Nellie. As : ever you expand our knowledge. : I am puzzled by the media reports that Black : Opals were used in the brooch. From the : colour photos I have seen, it seems that : pale Opals were used. : I would appreciate your opinion and those of : other posters. : : --Previous Message-- : : : : : :