anorthosite
/an-awr-thuh-sahyt/US // ænˈɔr θəˌsaɪt //UK // (ænˈɔːθəˌsaɪt) //
正长石,正长岩,正硅酸盐,刚玉
Definitions
n.名词 noun
- 1
Petrology.
- : a granular plutonic rock composed largely of labradorite or a more calcic feldspar.
Examples
In Canada great portions of the eastern portion of the Dominion are formed of gabbros, norite, anorthosite and allied rock types.
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