anorthoclase

noun
an·​or·​tho·​clase | \ əˈnȯrthəˌklās, -āz\
plural -s

Definition of anorthoclase

: a feldspar of chiefly sodium potassium aluminum silicate that is closely related to orthoclase but triclinic

First Known Use of anorthoclase

1888, in the meaning defined above

History and Etymology for anorthoclase

International Scientific Vocabulary an- + orthoclase; originally formed as German anorthoklase

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