(See quot. 1944.)
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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