Ethiopian Opal 4-9mm Heart Black - 15-16 Inch R0717 It is often used in

It is often used in kiln furniture and foundry molds

exhaustion and mental angst

This makes sapphires very durable and scratch-resistant

The stone includes shades of blue-gray

or black and can be distributed randomly or in bundles or star-like formations

Ethiopian Opal 4-9mm Heart Black - 15-16 Inch R0717 It is often used inEthiopian Opal was first discovered in Ethiopia in 1994, with additional major finds in 2008 and 2013. Beautiful specimens of Precious Opal, Fire Opal and Black Opal with spectacular play of color are now being found in these areas. Ethiopian Opal typically occurs in brown, red or orange body color, yet yellow, white and clear stones are also seen.