Bible Encyclopedias
Rock-Butter
The Nuttall Encyclopedia
A soft mineral substance found oozing from alum slates, and consisting of alum, alumina, and oxide of iron.
Copyright Statement
Public Domain.
Bibliography Information
Wood, James, ed. Entry for 'Rock-Butter'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/r/rock-butter.html. Frederick Warne & Co Ltd. London. 1900.