cryptohalite in a sentence

Examples

1. The intermolecular distances between fluorine atoms are smaller in bararite ( 3.19 and 3.37 ?) than cryptohalite.
2. Bararite has no known solution or exsolution, but it is always mixed with other substances ( cryptohalite, sal ammoniac, and sulfur ).
3. The silicon atoms of cryptohalite, ?-( NH 4 ) 2 SiF 6 ( alpha ), have librates ( oscillates )  at least when vibrationally excited.