One or more of the preceding sentences incorporates text from a publication now in the public domain: Spencer, Leonard James (1911). "Alunite". In Chisholm, Hugh (ed.). Encyclopædia Britannica. Vol. 1 (11th ed.). Cambridge University Press. p. 773. /wiki/Public_domain
One or more of the preceding sentences incorporates text from a publication now in the public domain: Spencer, Leonard James (1911). "Alunite". In Chisholm, Hugh (ed.). Encyclopædia Britannica. Vol. 1 (11th ed.). Cambridge University Press. p. 773. /wiki/Public_domain
One or more of the preceding sentences incorporates text from a publication now in the public domain: Spencer, Leonard James (1911). "Alunite". In Chisholm, Hugh (ed.). Encyclopædia Britannica. Vol. 1 (11th ed.). Cambridge University Press. p. 773. /wiki/Public_domain
One or more of the preceding sentences incorporates text from a publication now in the public domain: Spencer, Leonard James (1911). "Alunite". In Chisholm, Hugh (ed.). Encyclopædia Britannica. Vol. 1 (11th ed.). Cambridge University Press. p. 773. /wiki/Public_domain
Hurlbut, Cornelius S.; Cornelis Klein (1985). Manual of Mineralogy (20th ed.). ISBN 0-471-80580-7. 0-471-80580-7
Urbanus, Jason. "World Roundup - Archaeology Magazine". www.archaeology.org. Archaeological Institute of America. Retrieved 6 August 2019. https://www.archaeology.org/issues/342-1905/world