| 单词 | orthoclase |
| 释义 | orthoclase /awr"theuh klays', -klayz'/, n. a common white or pink mineral of the feldspar group, KAlSi3O8, having two good cleavages at right angles, and found in silica-rich igneous rocks: used in the manufacture of porcelain. [1840-50; ORTHO- + -clase < Gk klásis cleavage, breaking] |
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