| 释义 |
orthite Min.|ˈɔːθaɪt|
[= Ger. orthit (Berzelius, 1817), f. Gr. ὀρθός straight: see -ite1.]
A variety of allanite, found in long slender crystals, or straight masses.
1817in T. Thomson Ann. Philos. IX. 160 Orthite so named because it always forms straight radii. 1868Dana Min. (ed. 5) 289 Orthite occurs in acicular crystals sometimes a foot long at Finbo near Fahlun, and at Ytterby in Sweden.
Hence orˈthitic a., of the nature of orthite.
1843W. Humble Dict. Geol., Allanite, an orthitic melane-ore. |