Basanite
Chamber's Twientieth Century Dictionary · 1908 · p. 12
bas′an-īt, n. a kind of quartz serviceable for testing the purity of the precious metals by the marks made. [Gr. basanos , touchstone.]
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The American Dictionary and Cyclopedia (1907)
Chandler's Encyclopedia (1898)
An Illustrated Encyclopaedic Medical Dictionary (1891)
Nuttall's Standard Dictionary of the English Language (1890)
Zell's Condensed Dictionary (1879)
Dictionary of Science, Literature and Art (1842)
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