Among the 'OPALS, a general distinction is made between the iridescent EDELOPALS, the orange-red FIRE OPALS and the opaque, rarely translucent COMMON OPALS.
A rare variety of this is KASCHOLONG OPAL .
It is also known as PORCELAIN OPAL because of its unusual white color.
By the way, this piece is also a first-class CUTTING GOOD that shows a great "mother-of-pearl shine" when polished.
This raw piece is actually very rare and comes from deposits at URAL in Russia.
Weight: 810 grams(0.8 kg) Dimensions: 13 x 9 x 6.5 cm
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