| 释义 |
or·tho·clase AHD[ôrʹthə-klās', -klāz'] D.J.[ˈɔːθəˌkleɪs, -ˌkleɪz]K.K.[ˈɔrθəˌkles, -ˌklez]n.（名词）- A variety of feldspar, essentially potassium aluminum silicate, KAlSi3O 8, characterized by a monoclinic crystalline structure and found in igneous or granitic rock. Also called potash feldspar 正长石：一种长石类，特别是钾、铝、硅合物，KAlSi3O 8，其特征为单颗晶体结构，发现于火山岩或花岗岩中 也作 potash feldspar
- Greek ortho- [ortho-] 希腊语 ortho- [前缀，表“直的，正的”]
- Greek klasis [a breaking] from klan [to break] 希腊语 klasis [分裂] 源自 klan [打破]
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