Large Boulder Opal Specimen
Queensland, Australia
A boulder opal specimen, impressive in size, displays a thick ivory-toned opaque portion of opal, with some pink and green flash, atop a chocolate colored body with delicate amber-toned swirls. Boulder opal is found in Australia where precious opal forms in veins within brown ironstone boulders. The very large band of opal was exposed when a portion of the nodule in which it was formed weathered and fell away.
Measures 5 ¼ x 3 x 2in
A boulder opal specimen, impressive in size, displays a thick ivory-toned opaque portion of opal, with some pink and green flash, atop a chocolate colored body with delicate amber-toned swirls. Boulder opal is found in Australia where precious opal forms in veins within brown ironstone boulders. The very large band of opal was exposed when a portion of the nodule in which it was formed weathered and fell away.
Measures 5 ¼ x 3 x 2in
Estimate:
US$ 5,500 - 6,500
£3,600 - 4,300
€4,300 - 5,000
£3,600 - 4,300
€4,300 - 5,000
Category: Natural History
Auction terms and conditions
Contacts
Tom Lindgren
Bonhams
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Specialist
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Natural History
