The Stormy Mountain Turquoise Mine is located in Elko County, Nevada. Along with the Blue Diamond Mine, this stone is known for producing hard, dark blue turquoise that includes a blotchy, black or brown matrix that resembles storm clouds.
The highest grade material from the mine was a medium to dark blue and aqua blue with brownish/orange spiderweb as well as deep mahogany brown spiderweb matrix.
This mine is presently not active and is an extremely valuable addition to one’s collection.
Check out Blue Diamond Turquoise as well! It looks very similar to Stormy Mountain!