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anorthositic
an·or·tho·site A0322300 (ăn-ôr′thə-sīt′)n. An igneous rock consisting almost entirely of plagioclase feldspar, especially the labradorite variety. [French anorthose, a kind of feldspar (Greek an-, not; see a-1 + Greek orthos, straight) + -ite.] an·or′tho·sit′ic (-sĭt′ĭk) adj.anorthositic (ænˌɔːθəˈsɪtɪk) adjresembling or consisting of anorthositeEncyclopediaSeeanorthosite |