|AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Australia > Opal var. Boulder Opal|
|Mineral:||Opal var. Boulder Opal|
|Description:||Thin layer of opal on one face of gray matrix. The opal has blue to green play of colors (internal fire). Ex. Tom Penney collection #222|
|Overall Size:||3.5x2x2 cm|
|Status:||Sold - Posted here for reference only|
|Buy similar:||Minerals from China, Japan, Australia & Pacific Rim > Gem Minerals|
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