Beautiful Boulder Opal from the Koroit area of Australia
The Boulder opal from Koroit is considered some of the best. It's matrix is a very hard iron stone which takes a very nice polish. It also has great patterns and some bright crystal opal with fire. These are very nice stones and will make some great jewelry.

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Pictured wet, on black background in bright light.
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Koroit Boulder Opal Rough
Currently out but can make a special order - just let me know.
 $60.00 a pound - 2 pound minimum
2 pounds = $120.00 each + SHIPPING
additional 1 pound increments = $61.00 each (s/h included):