cordylite造句

• In the 1910s and 1920s he primarily studied the rich and varied mineral deposits in the L錸gban area, and described many previously unknown minerals, for example Synchysite-( Ce ) and Cordylite.
• At the same locality there is also found a barium-parisite, which differs from the Colombian parisite in containing barium in place of calcium, the formula being ( CeF ) 2 Ba ( CO 3 ) 3 : this is named cordylite on account of the club-shaped form of its hexagonal crystals.