Sodalite (var: Hackmanite) Andorite Crystallized specimens like this are

Crystallized specimens like this are few and far between from Colorado

and when it arrived

and not crumbly clay (after Allophane) which means that they are much sturdier and allows the pieces to be displayed with ease

Another outstanding feature is the wonderful color contrast between the vivid emerald green of the Vivianite and the altered red sandstone matrix

and certainly hard to find from this particular locality

Sodalite (var: Hackmanite) Andorite Crystallized specimens like this areThis is one of only a handful of Hackmanite gems that I've had to offer from Afghanistan, as they are amazingly difficult to find. Sodalite is a very durable stone and that's why it is so popular among dealers and collectors alike. The gem variety of Sodalite is called Hackmanite and the material is tenebrescent, which is the process by which a mineral changes daylight color after being exposed to ultra violet light. This particular stone shows a good