Gajardoite-(NH₄), (NH₄)As³⁺₄O₆Cl₂[(Ca_0.5□_0.5)(H₂O)₅],a new mineral
from the Khovu-Aksy deposit, Eastern Siberia, Russia

A.V. Kasatkin, V.V. Gurzhiy, N.V. Chukanov, A.A. Agakhanov, R. Škoda, D.I. Belakovski

Crystallization conditions of olivine in dunites the Guli massif, Siberian platform

V.A. Simonov, A.V. Kotlyarov, V.V. Sharygin, Yu.R. Vasiliev

Types of gold placers of the Amyl-Sistighem placer region, West Sayan

Ch.М. Khertek, А.М. Sаzonov

Processing of gypsum-bearing materials in the bronze age Gonur Depe archeological site (Southeast Karakum Desert)

L.Ya. Kabanova, A.M. Yuminov, I.A. Blinov