Queensland Boulder opal 20cts rub / rough / preform Koroit Blue fires 25x15x4mm BR#05
Queensland Boulder opal 20cts rub / rough / preform Koroit Blue fires 25x15x4mm BR#05
Regular price
£15.00 GBP
Regular price
Sale price
£15.00 GBP
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per
This is a nice Boulder opal of the Queensland opal fields.
From Koroit mining area , this is a opal in ironstone matrix
blue fires showing on exposed face
Preformed so only needs a little work & a Polish lots potential here
Please note boulder opal is ironstone host rock with deposits of opal.
- Details: #BR#05
- Weight: 20cts
- Grade: POTENTIAL GRADE
- Base Colour: Boulder tone
- Source: Queensland Australia
- Field: Koroit
- Size: 25x15x4mm
- Type: Koroit Boulder rough
- Colours: blue colours to veins
- State : In the Rough rubbed and preformed
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Solid, Natural, Untreated Opal, Ironstone Host rock