1. Mineralogy of Precious Metals in Ores of the Biksizak Base–Metal Deposit, South Urals, Russia

   • O. Yu. Plotinskaya
   • K. A. Novoselov
   • R. Seltmann

   DEDICATED TO THE 90TH ANNIVERSARY OF IGEM RAS 30 January 2021 Pages: 439 - 456

   

2. Index Minerals of the Hydrothermal Arsenide Process of the Formation of Cobalt Deposits of the Bou Offro–El Graara Ore Belt in the Anti-Atlas Province, Morocco

   • V. I. Lebedev
   • Yu. A. Kalinin

   OriginalPaper 30 January 2021 Pages: 457 - 479

   

3. Structural-Morphological Types and Localization Conditions of the Apocarbonate Talc Mineralization in the Beloretsk District of the Western Urals Province

   • N. V. Granovskaya
   • A. V. Kochergin

   OriginalPaper 30 January 2021 Pages: 480 - 496

   

4. Dissolution of Natural Octahedral Diamonds in an Fe–S Melt at High Pressure

   • V. M. Sonin
   • E. I. Zhimulev
   • A. I. Chepurov

   ReviewPaper 30 January 2021 Pages: 497 - 507

   

5. Multi-Stage Fluid System Responsible for Ore Deposition in the Ossa-Morena Zone (Portugal): Constraints in Cu-Ore Deposits Formation

   • M. Maia
   • N. Moreira
   • P. Nogueira

   OriginalPaper 30 January 2021 Pages: 508 - 534

   

6. On the Prospects of Diamond Content of the Southern Side of the Vilyui Syneclise

   • V. P. Afanasiev
   • N. P. Pohilenko
   • D. A. Samdanov

   SHORT COMMUNICATIONS 30 January 2021 Pages: 535 - 541

   

7. The Unique Sabantuy Chromite Paleoplacer in the Sedimentary Cover of the Eastern European Platform

   • I. R. Rakhimov
   • D. E. Saveliev
   • D. A. Zamyatin

   SHORT COMMUNICATIONS 30 January 2021 Pages: 542 - 546