Geology of Ore Deposits, 2021, V 63, N 7.

On Mineralogical Studies and the Use of Mineralogical 
Information in Solving Petro- and Ore Genesis Problems
Yu. B. Marin 
p. 625  

Compositional Evolution of REE- and Ti-Bearing Accessory
Minerals in Metamorphic Schists of Atomfjella Series,
Western Ny Friesland, Svalbard and Its Petrogenetic Significance
S. A. Akbarpuran Haiyati, Yu. L. Gulbin, A. N. Sirotkin
 and I. M. Gembitskaya 
p. 634  

New Minerals

Avdeevite, a Na-Dominant Alkali Beryl: Determination
as Valid Mineral Species and New Data
A. A. Agakhanov, D. A. Stepanenko, N. V. Zubkova, 
L. A. Pautov, I. V. Pekov, A. V. Kasatkin, V. Yu. Karpenko, 
V. A. Agakhanova, R. Škoda, S. N. Britvin and 
D. Yu. Pushcharovsky 
p. 654  

Minerals and Mineral Parageneses

Spectroscopy of Diamonds from the M.V. Lomonosov Deposit
E. A. Vasilev, G. Yu. Kriulina and V. K. Garanin 
p. 668  

First Finding of Platinum Group Minerals at the Malmyzh
Porphyry Gold–Copper Deposit, Khabarovsk Krai, Russia
D. S. Bukhanova, A. V. Kutyrev, E. G. Sidorov 
and V. M. Chubarov 
p. 675  

Rutile Enriched in Chalcophile Elements (Sb, Sn, Te), 
and Ti-rich Varieties of Tripuhyute and Cassiterite 
from Sublimates of Active Fumaroles at the 
Tolbachik Volcano, Kamchatka, Russia
F. D. Sandalov, I. V. Pekov, N. N. Koshlyakova, 
V. O. Yapaskurt, A. A. Agakhanov, E. G. Sidorov 
and S. N. Britvin 
p. 682  

Sulfur-Bearing Sodalite, Hackmanite, in Alkaline 
Pegmatites of the Inagli Massif (Aldan Shield): 
Crystal Chemistry, Photochromism, and Luminescence
T. A. Radomskaya, E. V. Kaneva, R. Yu. Shendrik, 
L. F. Suvorova and N. V. Vladykin 
p. 696  

New Data on the Platinum-Bearing Potential of 
Chromitites of the Kharcheruz Ultramafic Massif, Polar Urals
A. N. Yurichev, A. I. Chenyshov and E. V. Korbovyak 
p. 705  

Pyrrhotite–Nisbite–Breithauptite–Sulfoantimonide 
Micromineral Assemblage: a Product of 
High-Temperature Recrystallization of Ores at 
the Yuzhnoe Vein-Type Tin–Silver–Polymetallic 
Deposit, Sikhote-Alin, Russia
V. V. Ratkin, L. F. Simanenko, O. A. Eliseeva 
and V. G. Gonevchuk 
p. 717  

Volborthite Occurrence at the Alaid Volcano 
(Atlasov Island, Kuril Islands, Russia)
E. S. Zhitova, L. P. Anikin, A. V. Sergeeva, 
R. M. Ismagilova, V. A. Rashidov, V. M. Chubarov 
and A. N. Kupchinenko 
p. 735