Crystal system: Trigonal with distinct dichroism light and dark blue. Important distinction to Hauyn.

Translucent Afghanit is not available for long. As mineral specimen from Sar-e-Sang in Afghanistan have been known for a short time as light blue, medium to dark blue stones.
Partly with bright blue lazulite inclusions.

The property coincides with Hauyn and could lead to confusion.
But as a trigonal mineral, Afghanite is birefringent and sufficiently dichroic. Bright yellow under longwave UV light.

A very beautiful and valuable collector stone – ideal as a supplement to Hauyn, Lazulith and Sodalite / Hackmanite.

Just have a look at our Collector Stones category:

https://gemstore-24.com/?product_cat=collectorsstones&lang=en