斜长岩 Anorthosite
（重定向自Anorthositic）
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斜长岩是一种基性深成岩，90%以上的成分是斜长石，此外尚有一些成分为角闪石、辉石和黑云母组成。
斜长岩为灰色，粗粒状结构，有闪光变彩现象。
斜长岩为一种古老的岩石，也是月球表面组成月陆的重要成分，也是一种重要的建筑材料，伴生的矿物有磁铁矿、钛、铜、金红石、刚玉等。
Anorthositic
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Anorthosite 斜长岩
（重定向自Anorthositic）
Anorthosite /ænˈɔːrθəsaɪt/ is a phaneritic, intrusive igneous rock characterized by a predominance of plagioclase feldspar (90–100%), and a minimal mafic component (0–10%). Pyroxene, ilmenite, magnetite, and olivine are the mafic minerals most commonly present.
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