Mitrofanovite, Pt3Te4, a new mineral from the East Chuarvy deposit, Fedorovo-Pana intrusion, Kola Peninsula, Russia

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F19%3A00000250" target="_blank" >RIV/00025798:_____/19:00000250 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/19:00519176

Result on the web

<a href="https://www.minersoc.org/minmag.html" target="_blank" >https://www.minersoc.org/minmag.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1180/mgm.2018.150" target="_blank" >10.1180/mgm.2018.150</a>

Result language

angličtina

Original language name

Mitrofanovite, Pt3Te4, a new mineral from the East Chuarvy deposit, Fedorovo-Pana intrusion, Kola Peninsula, Russia

Original language description

Mitrofanovite, Pt3Te4 is a new telluride discovered in low-sulphide disseminated ore in the East Chuarvy deposit, Fedorovo-Pana intrusion, Kola Peninsula, Russia. It forms anhedral grains (up to about 20×50 micrometer) commonly in intergrowths with moncheite in aggregates with lukkulaisvaaraite, kotulskite, vysotskite, braggite, keithconnite, rustenburgite and Pt-Fe alloys hosted by a chalcopyrite-pentlandite-pyrrhotite matrix. Associated silicates are:orthopyroxene, augite, olivine, amphiboles, plagioclase. Mitrofanovite is brittle; it has ametallic lustre and a grey streak. Mitrofanovite has a good cleavage, along [001]. In planepolarizedlight, mitrofanovite is bright white with medium to strong bireflectance, slightpleochroism, and strong anisotropy on non-basal sections with greyish brown rotation tints; itexhibits no internal reflections. Reflectance values for synthetic analogue of mitrofanovite inair (Ro, Re’ in percent) are: 58.4, 54.6 at 470nm; 62.7, 58.0 at 546nm; 63.4, 59.1 at 589nm; 63.6,59.5 at 650nm. Fifteen electron-microprobe analyses of mitrofanovite gave an averagecomposition: Pt 52.08, Pd 0.19, Te 47.08, and Bi 0.91, total 100.27 wt.percent, corresponding tothe formula (Pt2.91Pd0.02)sigma2.93(Te4.02Bi0.05)sigma4.07 based on 7 atoms; the average of eleven analyseson synthetic analogue is: Pt 52.57, and Te 47.45, total 100.02 wt.percent, corresponding toPt2.94Te4.06. The density, calculated on the basis of the formula, is 11.18 g/cm3.The mineral istrigonal, space group R3m, with a 3.9874 (1), c 35.361 (1) angstroem, V 486.91 (2) angstroem3 and Z = 3. Thecrystal structure was solved and refined from the powder X-ray-diffraction data of syntheticPt3Te4. Mitrofanovite is structurally and chemically related to moncheite (PtTe2). Thestrongest lines in the X-ray powder diffraction pattern of synthetic mitrofanovite [d in angstroem (I)(hkl)] are: 11.790(23)(003), 5.891(100)(006), 2.851(26)(107), 2.137(16)(1013),2.039(18)(0114), 1.574(24)(0120), 1.3098(21)(0027). The structural identity of naturalmitrofanovite with synthetic Pt3Te4 was confirmed by electron backscatter diffraction (EBSD)measurements on the natural sample. The mineral name is chosen to honour Felix P.Mitrofanov, a Russian geologist who was among the first to discover platinum group element(PGE) mineralization in the Fedorova-Pana complex.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10504 - Mineralogy

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Mineralogical Magazine

ISSN

0026-461X

e-ISSN

—

Volume of the periodical

82

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

523-530

UT code for WoS article

000483896200005

EID of the result in the Scopus database

2-s2.0-85071964470