参考文献
Betts, A. G.
Eng. Min. J., 1901 , vol. 71, p. 783
Full Text Show Details
Betts, A. G.
Monit. scient. {4}, 1902 , vol. 16 I, p. 25
Full Text Show Details
Buogo, G.
Ind. Chim. (Rome), 1931 , p. 523
Full Text Show Details
Scheidt, K.
Zh. Khim. Prom - sti., 1926 , vol. 3, p. 1200
Full Text Show Details
Gmelin Handbook: Br: MVol., 1.2, page 40 - 44