was the key to their success. Why?.
Precious Jelly Opal
This is a semiblack or jelly opal.
Orthoclase Feldspar
Orthoclase is a moderately cheap transparent stone that is colourless or pale yellow and can have a bluish white
Faceted Square Cuts
The second group of faceted cuts includes straight-sided girdle shapes: squares, rectangles, octagons, triangles,
Opal Matrix
ome opals have a banded growth of precious opal with matrix rock, and there can also be inclusions of matrix within the
Precious White Opal
White opal has a light base and can have a strong colour play.
Amazonite (microcline)
Amazonite is an attractive opaque stone that, due to the presence of lead, is either striped blue and white or a solid
Moonstone
Moonstone is the opalescent variety of orthoclase. Traditionally thought to be a good- luck stone and an arouser of
