Bible Dictionaries
Obsidian

Webster's Dictionary

(n.) A kind of glass produced by volcanoes. It is usually of a black color, and opaque, except in thin splinters.

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