“Discovered in 1989, this is one of the largest (2765 carats) and finest quality boulder opals ever mined.  This opal is unique not only for its size but also for its quality -- every color of the spectrum is visible which is extremely rare, even in the finest of opals.”  “Opal, Opalville Mine, Queensland, Australia” by Wikipedia Loves Art participant “Assignment_Houston_One” is licensed under CC By-SA 2.5

Australian opals account for of the world’s supply. Learn about Australia’s geological history, the start of its opal trade, and its sources.

links to CLASSIFICATION OF OPAL info

links to CLASSIFICATION OF OPAL info

Opalton Location

Opalton Location

Boulder Opal and QBOA tradeshow link

Boulder Opal and QBOA tradeshow link

Galaxy Opal from Opalville Jundah

Australian opals account for of the world’s supply. Learn about Australia’s geological history, the start of its opal trade, and its sources.

Unique to Queensland’s Tropic of Capricorn, boulder opal occurs within a belt of deeply weathered Cretaceous sedimentary rocks, known as the Winton Formation. Dig for your own opals at Opalton, 124 kilometres from Winton (unsealed road).

Unique to Queensland’s Tropic of Capricorn, boulder opal occurs within a belt of deeply weathered Cretaceous sedimentary rocks, known as the Winton Formation. Dig for your own opals at Opalton, 124 kilometres from Winton (unsealed road).

Boulder Opal is one of the most undervalue opals valuable on the market. Learn more about this unique opal and browse the beautifully stones we have for sale.

Boulder Opal Information

Boulder Opal is one of the most undervalue opals valuable on the market. Learn more about this unique opal and browse the beautifully stones we have for sale.

Self Drive Adventures - Experience Winton - Home of Waltzing Matilda, Birthplace of QANTAS, Land where dinosaurs once roamed & Home to Queensland's Capital of Boulder Opal, Opalton - Experience Winton

Self Drive Adventures - Experience Winton - Home of Waltzing Matilda, Birthplace of QANTAS, Land where dinosaurs once roamed & Home to Queensland's Capital of Boulder Opal, Opalton - Experience Winton

this QBOA Logo links to qboa website

this QBOA Logo links to qboa website

Cawnpore-Lookout links to info and map for Middleton

Cawnpore Lookout - Dig the Tropic

go on a tour

go on a tour

Boulder Opal info

Boulder Opal Information

Opalton - Destination Information - Queensland

Opalton - Destination Information - Queensland

Winton and Boulder Opal info

Winton and Boulder Opal info

#Opalton - Twitter Search

#Opalton - Twitter Search

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