輝岩(英文:pyroxenolite),屬於岩漿岩侵入岩超基性岩,是輝石含量大於90%的區域變質岩石,常與橄欖岩共生。顏色多為黑色、灰黑色。

成分

主要成分

透輝石、紫蘇輝石

次要成分

普通角閃石石榴子石斜長石石英磁鐵礦黑雲母

產狀

結構:中粗粒變晶

構造:塊狀構造

產出:構造透鏡體夾層

共生岩:麻粒岩角閃岩

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