Ulexite Mineral Specimen For Sale - Dakota Matrix
Boron, Kern Co., California, United States Solid piece of satiny-white Ulexite composed of tightly compact optical fiber-like crystals. The Boron mine in Kern Co., California is a large open pit mine, the largest in California and likely the largest Borate mine in the World, that has been mined since the deposit's discovery in the 1920's.