Blue Chalcedony, Namibia.
Rossing, Namibia. 100mm x 60mm x 40mm.
The best "Blue Chalcedony" undoubtably came from Rossing in Namibia. Through the years we have cut and polished a lot of this material and can confidently advise that this is great for any lapidary work you may have in mind (or simply as a specimen in the cabinet)