Four purple opal colour patches on top face of rock.
Traces of potential internal seams to explore.
Ideal lapidary practice for starting out with boulder opal.
Suits cutting and polishing to multiple picture stones.
High density ironstone host rock mined at Winton opal fields. Weight approximately 421 grams Dimensions approximately 8 x 8 x 4 cm Some photos in outdoor daylight, dry as-mined condition. Some photos wet to simulate polishing potential of the opal.
