Literatur
Bonel, G., andG. Montel: Compt. rend.258, 923 (1964).
Quinaux, N.: Nature201, 182 (1964).
McConnell, D.: Science136, 241 (1962).
—: Am. Mineralgist45, 209 (1960).
McConnell, D., andF. H. Verhoek: J. Chem. Educ.40, 512 (1963).
Simpson, D. R.: Am. Mineralgist49, 363 (1964).
Winand, L.: Bull. soc. roy. sci. Liège32, 575 (1963).
McConnell, D.: Can. Mineral.8, 11 (1964).
Cady, J. G., W. L. Hill, E. V. Miller, andR. M. Magnes: Am. Mineralogist37, 180 (1952).
Cohen-Addad, C., P. Ducros, A. Durif, E. F. Bertaut, andA. Delapalme: J. phys. radium25, 478 (1964).