Citation: Krivovichev, S. V.; Chernyshov, D. Y.; Dobelin, N.; Armbruster, T.; Kahlenberg, V.; Kaindl, R.; Tessadri, R.; Kaltenhauser, G. (2006). Crystal chemistry and polytypism of tyrolite Sample: Brixlegg, Schwaz, Tyrol, Austria Note: Tyrolite-1M polytype. American Mineralogist, 91, pp. 1378-1384.