M. Schindler, F.C. Hawthorne, D.M.C. Huminicki, P. Haynes, J.D. Grice, H.T. Evans Jr. (
) Bobjonesite, V4+O(SO4)(H2O)3, a new mineral species from Temple Mountain, Emery County, Utah, U.S.A.
The mineral occurs as blue-green crusts and efflorescences of intergrown <<1 mm crystals that have a vitreous luster and pale blue color. Synthetic material has a pale blue streak, H = ~1, no cleavage or parting, nonfluorescent, Dcalc = 2.28 g/cm3 for Z = 4, stable only at low humidity. Synthetic material is optically...