- Hyalite Opal on Goshenite Beryl
- Miniature, 4.0 x 3.8 x 3.6 cm
- Erongo Mountains, Namibia
- Ex. Charlie Key
This specimen is notable both for the doubly-terminated goshenite and also for the richness of the hyalite opal, which glows intensely in ultraviolet light and is quite rare from here.