| 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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