Ethiopian Opal 4-9mm Heart Black - 15-16 Inch Bicone Faceted A Grade while the Zoisite is light

while the Zoisite is light to medium green

Opals are hydrated amorphous forms of silica

which is itself a form of Muscovite

It occurs in bright turquoise blues and darker blues as well as rust reds

pink and golden mottling and spots within the primarily black stone

Ethiopian Opal 4-9mm Heart Black - 15-16 Inch Bicone Faceted A Grade while the Zoisite is lightEthiopian 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.