单词 franckeite 释义 franckeite Min.|frkat|[ad. G. franckeit (A. W. Stelzner 1893, in Neues Jahrb. f. Min. ii. 124), f. the name of Carl and Ernest Francke, mining engineers: see -ite1.]A sulphostannate of lead, Pb5Sn3Sb2S14, forming lustrous greyish-bla...