An common name for the mineral alunite which is composed of potassium aluminum sulfate.
Synonyms and Related Terms
Roman alum; alunite; rock alum; alúmen (Port.)
Sources Checked for Data in Record
- Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 33
- Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982