basanite
[bas-uh-nahyt, baz-]
/ ˈbæs əˌnaɪt, ˈbæz- /
NOUN
touchstone
Synonyms
Example Sentences
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Basanite, bas′an-īt, n. a kind of quartz serviceable for testing the purity of the precious metals by the marks made.
From Chambers's Twentieth Century Dictionary (part 1 of 4: A-D) by Various