| 释义 |
koktaite Min.|ˈkɒktəaɪt|
[ad. Czech koktait (J. Sekanina 1948, in Acta Acad. Sci. Nat. Moravo-Silesiacae XX. i. 1), f. the name of Jaroslav Kokta, Czech mineralogist (see quot. 1948): see -ite1.]
Hydrated calcium ammonium sulphate, (NH4)2Ca(SO4)2·H2O, occurring in acicular monoclinic crystals and identical with artificial ammonium syngenite.
1948Mineral Abstr. X. 352 Artificial ammonium-syngenite..has the composition (NH4)2Ca(SO4)2·H2O (analysis by J. Kokta..), and agrees in the optical data with the mineral, named koktaite, from Žeravice. 1968I. Kostov Mineral. ii. ix. 504 Syngenite and koktaite are isotypic. |