English dictionary
anorthite
/&/n'/O/r/T//aI/t/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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rare plagioclastic feldspar occurring in many igneous rocks
Source: WordNet 3.0
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A mineral of the feldspar family, commonly occurring in small glassy crystals, also a constituent of some igneous rocks. It is a lime feldspar. See <u>Feldspar</u>.
Source: webster1913