About this Product
Australian Boulder Opal is one of the most valuable varieties of opal, second only to Australia's black opal. Boulder opal can exhibit all of the spectral colors through their distinct play of color. Boulder opal is quite rare and accounts for only approximately 2% of all of Australia's opal. Boulder opal was first discovered in Quilpe, Western Australia, around the year 1870. This is a small gemstone cabochon with a lovely pattern and little to no fire.
Origin....................Australia
Length...................26mm at longest measure
Width.....................22mm at widest measure
Thickness...............5mm
Weight...................25 carats
Mohs Hardness......5.5 - 6
Back.......................Flat Unpolished
Almost all boulder opal available today is from Western Queensland's opal-rich fields, confined to an area of about 200 to 300 square kilometers.
Boulder opal is found embedded in large boulders of ironstone, which is how it earned its name.
This gemstone cabochon is a natural solid fire opal. This is a beautiful, rare collector stone or jewelry designer focal stone.
Typical of this material, there may be some open surface veining and rough areas.
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Fine Quality Hand Cut Cabochons for Designers and Collectors
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