Bible Dictionaries
Raphite

Webster's Dictionary

(n.) Native carbon in hexagonal crystals, also foliated or granular massive, of black color and metallic luster, and so soft as to leave a trace on paper. It is used for pencils (improperly called lead pencils), for crucibles, and as a lubricator, etc. Often called plumbago or black lead.

Bibliography Information
Webster, Noah. Entry for 'Raphite'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​r/raphite.html. 1828.