1. G. Frenzel, The Manganese Ore Minerals (Budapest, 1980).
2. I. M. Golovanov, Mineralogy and Geochemistry of the Supergene Zone of the Kurgashinkan Base-Metal Deposit (Nauka, Tashkent, 1965) [in Russian].
3. V. V. Maslennikov, Sedimentogenesis, Halmyrolysis, and Ecology of Paleohydrothermal Massive Sulfide Ore Fields (with Reference to the Southern Urals) (Geotur, Miass, 1999) [in Russian].
4. K. A. Nirmal and D. S. Gowd, “An X-Ray Study of Silver Amalgam and Its Stoichiometry,” J. Appl. Cryst. 8 (Pt. 6), 693–694 (1975).
5. V. N. Sazonov, Au-Bearing Metasomatic Rocks in Mobile Belts (UGGGA, Yekaterinburg, 1998) [in Russian].