- Thumbnail, 1.9 x 1.5 x 1.3 cm
- Hezhou, Guangxi Zhuang Autonomous Region, China
An outstanding thumbnail crystal with sharp 3-dimensional crystallography, 1.5 cm on long edges and 1.8 cm across the diagonal o nthe main crystal. This is shocking for the species. It is not gemmy blue, but rather has an odd purpley sheen to the surface.