| Lapidary material | Koroit boulder opal |
|---|---|
| size | 22mm x 22mm x 20mm x 5mm |
| weight | 20 carats |
Check the listing for details. Koroit Boulder Opal triangular Cabochon green Fire. Listed at 55.00 USD. This is a triangular Koroit boulder opal cabochon from Gene McDevitt’s mine in. Australia ~ 20 carats. This is a nice opal to set.
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