Examples from the Web for alunite
In the Goldfield camp (p. 230) the ores are closely associated with alunite in such a manner as to suggest a common origin.
Alunite, al′un-īt, n. a mineral consisting of common alum together with normal hydrate of aluminium.
Alunite is a potassium-aluminum sulphate, which differs from sericite in that sulphur takes the place of silicon.
One of the interesting features of this occurrence is the abundance of alunite.
Of other natural mineral sources, alunite is the most important.