PRECIOUS OPAL "EGG". Opal Butte, Morrow Co., Oregon, USA. ...
Opal Butte, Morrow Co., Oregon, USA
Along with stone spheres, lapidary fashioned stone "eggs" have been a collectible for many years now. The shape of an egg seems to have a particular fascination for people of all ages. While the vast proportion of the stone eggs churned out each year are made from common rocks and minerals, there is a small number of them fashioned from much more precious material - like precious Opal. Precious Opal from Opal Butte, Oregon, has produced some of the finest play-of-color Opals in the world. This 'chicken egg' started life in a volcanic Rhyolite flow and consists of fractured chunks of silicified Rhyolite cemented together by veins of precious Opal. The Opal veins exhibit flashes of red, gold, blue, green and purple emanating from deep within the Opal vein filling - essentially all colors of the rainbow are suspended in the opal sections. Play-of-color Opals from this locality are extremely rare, as less than 1% of the Rhyolite geodes contain precious Opal. The silicified Rhyolite is a variable chocolate brown bearing a full selection of colored bands, spots and narrow veins of a pale material, presumably silica of some form. It shows "40,000" in India ink on the bottom but there is no data associated with this number. Documentation says that the Opal material was mined in 1985.
Overall measurements: 2.62 x 1.75 inches (6.7 x 4.4 cm). Offered at no reserve.
Provenance: West Coast Mining [Hoppel Catalog # D1985]
[Scale: 1 inch, with mark at 1 cm]
Condition Report*:Condition report available upon request.
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