Showing papers by "Clifford Frondel published in 1968"

Meta-aluminite, a new mineral from Temple Mountain, Utah

Abstract: The new species meta-aluminite, Alr(SOr(OH)4.SH2O, occurs abundantly associated with basaluminite and gypsum in veinlets in sandstone at the Fuemrole mine, Temple Mountain, Emery County, Utah. It forms microcrystalline masses of a pure white color and silky luster. Monoclinic. Optically biaxial negative, with a-1.497 +0.001, B-1.512+0.001, r-1.513 and 27 small. The extinction angle I (?) to the elongation of the minute laths is 43' with Z (?):b. Specific gravity 1.85+0.02. X-ray powder diffraction data are distinctive. The four darkest X-ray powder lines are it 4.48 (1 100), 8.J5 (79), 4.36 (67), 6.35 (53). Meta-aluminite is formed when aluminite, Alr(SOt(OH) 4.7HzO, is heated in air at 55\"C. Neither this phase nor aluminite or basaluminite was observed by Bassett and Goodwin (1949) in their study of the system AI2O3-SO3-H2O at 25oC.

Synthesis of the scandium analogue of beryl: Errata

Abstract: Frsurn, D. J. (i966) Cacoxenite from Arkansas. Amey. MineraL,5l, 1811-1814. FnoNntr, Crrrrorl (1949) The dufrenite problem. Amer. MineroL., 34, 513 540. Hrrr, W. L., W. H. Anurcrn, ar.ro S. D. Goocn (1950) Some properties of pseudowavellite from Florida. Min. Eng., 187, 699-702. O'wrtNs, I.B.,Z.S. Ar-rscnur.rn, enn R. Bnuax (1960) Millisite in phosphorite from Florida. Amer. Mi.neral,.. 45. 547-561. Prr.ecrt, C., H. BnxrunN, AND C. Fnononl (1951) System oJ Mineralogy , Vol 2. John Wiley and Sons, New York, New York. Wlrson, T. L. eNo S. D. Gooor (1918) Vivianite from the land pebble phosphate deposits of Flor ida. J.Wash. Acad. Sci . .8. 82 88.