SEMIBLACK OPAL
APPROX 2.00CT MM VARIES OVAL OPAL
Approx 2.00ct mm varies oval cabochon australian opal. opal is a unique gemstone with a beautiful play-of-color display. it can exhibit a full range of hues from the color wheel set against a light or dark background. on mohs' scale of hardness opal is 5.5-6.5.
10X8MM OVAL AUSTRALIAN SEMI BLACK OPAL
10x8mm oval Australian semi-black opal from the Coober Pedy mines.
11X9MM OVAL LIGHT GREY AUSTRALIAN SEMI-BLACK OPAL FROM COOBER PEDY MINE
11x9mm oval light grey Australian semi-black opal from Coober Pedy mine.
