US$ 45.30
Location: Southwestern Siberia
Xiphactinus audax
These pyrite cubes may appear to be man-made at first
The design patterns are natural
Pietersite Free Form Cabochon Amber Location: Southwestern SiberiaWeight: 3. 3g (16. 5ct) Approx. dimensions: 28mm 19mm Pietersite, also called "eagle's eye," was named in honor of Sid Pieters who discovered it in 1962 in Namibia, Africa. Pietersite is a trade name for a dark blue grey breccia aggregate made up mainly of hawk's eye and tigereye. It is a variety of chalcedony (itself a variety of quartz) with embedded fibers of amphibole minerals in varying degrees of alteration. The fibers cause a blue chatoyancy
US$ 45.30
US$ 14.69
US$ 18.99
US$ 10.00