Bible Dictionaries
Roscoelite

Webster's Dictionary

(n.) A green micaceous mineral occurring in minute scales. It is essentially a silicate of aluminia and potash containing vanadium.

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