Wardsmithite from Death Valley National Park, USA
USA (FRL) | |
| Erd, Richard C., McAllister, James F., Vlisidis, and Angelina C. (1970) Wardsmithite, 5CaO·MgO·12B2O3·30H2O, new borate mineral from the Death Valley Region, California. American Mineralogist, 55 (3-4) 349-357 www.mineralsocal.org |
| Erd, Richard C., McAllister, James F., Eberlein, G. Donald (1979) New data on hungchaoite, the second world occurrence, Death Valley region, California. American Mineralogist, 64 (3-4) 369-375 |