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2025-07-21

“graystone”的英英意思

单词

graystone

释义

greystone, graystone Min.|ˈgreɪstəʊn|
[f. grey a. + stone n.]
A grey volcanic rock, composed of feldspar (sometimes replaced by leucite or melilite), augite, or hornblende, and iron.
1815W. Phillips Outl. Min. & Geol. (1818) 151 Greystone according to Werner, is a mixture of white felspar and blackish hornblende.1830Lyell Princ. Geol. I. 396 But lavas of composition precisely intermediate occur, and from their colour have been called graystones.