Bible Dictionaries
Ralstonite
Webster's Dictionary
(n.) A fluoride of alumina and soda occurring with the Greenland cryolite in octahedral crystals.
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Bibliography Information
Webster, Noah. Entry for 'Ralstonite'. Noah Webster's American Dictionary. https://www.studylight.org/dictionaries/eng/web/r/ralstonite.html. 1828.