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Queensland Boulder Matrix opal 40cts rough / slice Koroit Nice fires 30x15x5mm BD#12
Queensland Boulder Matrix opal 40cts rough / slice Koroit Nice fires 30x15x5mm BD#12
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£17.50 GBP
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This is a Boulder opal of the Queensland opal fields.
From Koroit mining area , this is a opal in ironstone matrix
This has been sliced to exposed the potential and faces to work with
veins of opal showing some nice colour
Please note boulder opal is ironstone host rock with deposits of opal.
- Details: #BD#12
- Weight: 40cts
- Grade: POTENTIAL GRADE
- Base Colour: Boulder tone
- Source: Queensland Australia
- Field: Koroit
- Size: 30x15x5mm
- Type: Koroit Boulder rough Slice
- Colours: some nice colours to veins
- State : In the Rough sliced
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Solid, Natural, Untreated Opal, Ironstone Host rock
