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单词 θ6477
释义
the world > the earth > minerals > mineral structure or appearance > [noun] > crystal structure > specific crystal (3)
chromitite1910

(See quot. 1944.)

idioblast1920

Geology. A mineral crystal within a metamorphic rock which has developed its own characteristic crystal faces. Cf. idioblastic, adj. 2.

poikiloblast1944

Geology. A large crystal in a metamorphic rock containing inclusions or small grains of other minerals.

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更新时间:2024/12/23 14:02:06