| 释义 |
ferrian, a. Min.|ˈfɛrɪən|
[f. L. ferr-um iron + -ian.]
Of a mineral: having a (small) proportion of a constituent element replaced by ferric iron.
1930[see ferroan a.]. 1954Thorpe's Dict. Appl. Chem. (ed. 4) XI. 883/1 Ferrian wad contains an increasing proportion of ferric oxide, and grades into goethite or limonite. 1959W. H. Dennen Princ. Mineral. vii. 271 Chemical varieties [of cassiterite]: Ferrian, tantalian (ainalite). |