oligoclase
1. oligoclase albite
奥钠长石
2. Latites contain plagioclase feldspar (andesine or oligoclase) as large, single crystals (phenocrysts) in a fine-grained matrix of orthoclase feldspar and augite.
安粗岩中包含斜长石(中长石或奥长石),是在正长石和普通辉石组成的细粒基质中的大单晶体(斑晶)。
3. The plagioclase contains albite, oligoclase, andesine, laboratories, bytownite and anorthite.
钠长石、更长石、中长石、拉长石、培长石和钙长石属于斜长石大类。