BlackOpalMine.com sells opals and gemstones from Australia
Title
Black Opal Mine - Opals - Gemstones - Black Opal - White Opal - Boulder Opal - Rough Opal
Description
Australian opals are the finest in the world. Good stable Australian opal has proved to be a sound investment over the past 25 years. It is one of the few gemstones that has continued to appreciate in value at a steady rate. But before you race out and buy one, learn a little about them and in what form they come and what is available.
are natural stones which have been cut and polished without being interfered with. Many have a natural potch or rock back.
are usually two pieces of opal cemented together. They are made by cementing a layer of high-grade opal to a black potch back, which enhances the colour. For economical reasons, many have thin faces. But domed cabochons made from good quality crystal opal, do in many cases, resemble fine quality black opal, which is due to the partial absorption of light by the black back. Their value is only a fraction of that of a solid black gem of the same quality. Although not always encouraged by the trade as an investment stone, the better pieces do bring a reasonable price and are certainly worthy of a place in any good gem collection.
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