| 释义 |
▪ I. websterite1 Min.|ˈwɛbstəraɪt|
[Named in 1822 after T. Webster, who discovered it: see -ite.]
A synonym of aluminite.
1823H. J. Brooke Crystallogr. 452. 1837 Dana Min. 450. 1855 J. Phillips Man. Geol. 386.
▪ II. websterite2 Petrogr.|ˈwɛbstəraɪt|
[f. Webster, name of a village in N. Carolina + -ite1.]
An ultramafic intrusive igneous rock composed essentially of orthorhombic and monoclinic pyroxenes.
1890G. H. Williams in Amer. Geologist VI. 44 The specimens obtained by Mr. Merrill from Webster are such admirable representatives of the bronzite-diopside rocks that the name Websterite is suggested..for them; and there seems to be no impropriety in extending this term over all the massive intrusives which are composed entirely of monoclinic and orthorhombic pyroxene. 1978S. R. Nockolds in S. R. Nockolds et al. Petrol. for Students xiii. 148 Pyroxenite with both ortho- and clino⁓pyroxene (‘websterite’) is the commonest variety, found both in connection with some great layered igneous bodies..and in small intrusions. |