However, this material is from Pakistan, not Burma where Maw Sit Sit was always known as a single source gemstone.
In spring, at Baselworld, a gemologist was asked to look into the stone by a seller who was mining it.
Researchers sampled the material and found it to be mainly calcium, unlike Maw Sit Sit which normally has very little calcium. These are calcium silicates that they say replaced the original material by metamorphism, therefore it's scarn with the name Sannan attached to it to show it's from Pakistan, so it's called Sannan-Skarn.
More information is said to be coming soon.
Full article with more images here:
http://www.palagems.com/gem-news-2016-09#maw-sit-sit
