[1] For 25 years, he has been a leading employee of the Moscow Institute of Mineralogy, Geochemistry and Crystal Chemistry of Rare Elements, the author of new methods for determining minerals.

For almost fifty years, Marianna Bezsmertnaya was married to the famous Moscow geologist, specialist in the field of geology of ore deposits, associate professor at the Polytechnic and Pedagogical Institute Vladimir Bezsmertny,[7]: 63  with whom they formed a productive scientific tandem in the 1950-1970s.

As the son of a Baku feldsher, he was the nephew of Maria Bezsmertnaya (Bessmertnaya), an assistant and confidant of Vladimir Vernadsky, who stood at the origins of Soviet biochemistry in the late 1910s.

This mineral was found a year earlier by a geological exploration party at the Aginskoye gold deposit (Central Kamchatka, Bystrinsky district).

[9] At the same time, it was Marianna Bezsmertnaya who insisted on including her husband’s name in the nomination list of the mineral Bezsmertnovite, thus designating herself as an integral part of the family scientific tandem.

This was her only request or an important condition put forward to Tatyana Chvileva and Ernst Spiridonov when nominating the mineral for approval by the commission of the Academy of Sciences and the Ministry of Geology of the USSR in 1979.

As a co-author of works on optical methods for studying minerals, she was distinguished by her scrupulous professionalism, as well as her breadth and liberality of views.

[12] Until the mid-1960s, information about many tellurides in Soviet and world mineralogy remained so vague that it allowed M. S. Bezsmertnaya in 1965 to use the following formulation in this regard: «...published laboratory and analytical information about calaverite and krennerite are so contradictory and confusing that they completely exclude the possibility of using them for diagnostic purposes...»[13]: 45 Developing this topic, the authors of the monograph noted in the preface to the first edition that “... the current state of knowledge of tellurides does not provide a sufficiently reliable determination of them...”[12]: 5  It was precisely this state of mineralogy in the late 1960s that led to the need for science to reach a new level studying minerals.

In the process of creating standards, the authors came to the conclusion that difficulties in collecting ore minerals of rare elements arise not in isolated cases, but systematically.

And if before the publication of M. Bezsmertnaya’s monograph, many of the gold-silver tellurides and similar polymetallic ores were considered non-existent or not found on the territory of the USSR, then the 1970s radically changed this state of affairs.

From the mid-1960s and the first part of the 1970s, Marianna Bezsmertnaya worked in close and productive collaboration with Tatyana Chvileva, Candidate of Mineralogical Sciences, who was under her supervision.