. . . . . . . . . . . . . . . . . Alum Shale, Sweden and Norway . . . . . . . . . . . . . . . . . .... in 1955, stating, "Thoriun1, zinn,valdite, glaucophane and biotite, plus amphibole, pyroxene, uran iun1...in pegmatites also are knovvn. In the Varutrask, Sweden, pegmatite (Quensel, 1940) uraninite cubes are...near Helena, Mont., and the Scott River, Siskiyou County, Cali£. ( George, 1949). In twinned cubes in the...Australia), and on stibiotantalite (Varutrask, Sweden ) are knovvn; :is are oriented intergro,1/ths of |