| 释义 |
ellestadite Min.|ɛlɪˈstædaɪt|
[f. the name of R. B. Ellestad (b. 1900), American analytical chemist + -ite1.]
A halogen-containing mineral of the apatite group in which phosphorus is largely replaced by sulphur and silicon.
1937D. McConnell in Amer. Mineralogist XXII. 977 The name ellestadite is proposed for the end-member of the apatite group which contains SiO4- and SO4-groups substituting for PO4-groups. 1959P. F. Kerr Optical Min. (ed. 3) xii. 230 Fermorite, strontian apatite, and ellestadite are similar to apatite in physical properties. |