Quartz var "Blue Lace Agate". Namibia
Farm 254, Ysterputz, Karasberg Region, Namibia. 60mm x 30mm.
The area is better known for the lapidary grade "blue lace agate" than these oddities that are also found there. The blue chalcedony has a cubic appearance on the surface, quite unusual and very attractive. Packed shipping weight +/- 200gr.