Black Opal 7x9-8x10mm Pebble - 15-16-Inch Eagle Eye Stone (A) gray and white and its

gray and white and its swirling

this wood variety is so hard that it is often used in heavy construction for beams

and black bands and flecks of color

Young trees cannot be legally harvested

grossular (varieties of which are hessonite or cinnamon-stone and tsavorite)

Black Opal 7x9-8x10mm Pebble - 15-16-Inch Eagle Eye Stone (A) gray and white and itsBlack Opal is a naturally occurring variety of precious opal mined in Australia. this opal variety is characterized by their dark base tone. It is mined under extremely harsh conditions and the high grade specimens are more rare than diamonds. Australian Aboriginal tribes referred to Black Opal as "Fire of the Desert."