About Boulder Opal:Boulder opals which are mined only in central Queensland Australia, are fund in ironstone. DETAILS: No9010 Natural solid boulder opal loose stone. Stone Natural solid boulder opal.
| Gemstone Treatment | Not Enhanced |
| Gemstone Form | Polished |
| Gemstone Type | Boulder Opal |
| Gemstone Shape | Freeform |
| Total Carat Weight | 5.27ct |
| Gemstone Creation | Natural |
| Country Of Origin | Australia |
This stone is sized at 5x7mm, a popular pick for custom orders.