Auroselenide, AuSe, a new mineral from Maletoyvayam deposit, Kamchatka peninsula, Russia
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F23%3A10168915" target="_blank" >RIV/00025798:_____/23:10168915 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1180/mgm.2022.137" target="_blank" >https://doi.org/10.1180/mgm.2022.137</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1180/mgm.2022.137" target="_blank" >10.1180/mgm.2022.137</a>
Alternative languages
Result language
angličtina
Original language name
Auroselenide, AuSe, a new mineral from Maletoyvayam deposit, Kamchatka peninsula, Russia
Original language description
Auroselenide, ideally AuSe, is a new mineral from the Gaching ore occurrence of the Maletoyvayam deposit, Kamchatka peninsula, Russia. It occurs as anhedral grains up to 0.05 x 0.02 mm and as intergrowths up to 0.06 mm with maletoyvayamite-tolstykhite-series minerals, enclosed in native gold. Other associated minerals include pyrite, calaverite, fischesserite, gachingite, tetrahedrite-group minerals [stibiogoldfieldite, its As-analogue, tennantite-(Cu) and tetrahedrite-(Zn)], tripuhyite, minerals of the famatinite-luzonite and selenium-tellurium series, paraguanajuatite, petrovskaite, soucekite and tiemannite. Auroselenide is bluish-grey, opaque with metallic lustre and grey streak. It is brittle and has an uneven fracture. Dcalc = 9.750 g/cm(3). In reflected light, auroselenide is grey with a bluish shade. Bireflectance is very weak. No pleochroism and internal reflections are observed. In crossed polars, it is strongly anisotropic with bluish to brownish rotation tints. The reflectance values for wavelengths recommended by the Commission on Ore Mineralogy of the International Mineralogical Association are (Rmin/Rmax, %): 28.4/31.5 (470 nm), 30.2/33.3 (546 nm), 31.9/34.9 (589 nm) and 34.3/37.3 (650 nm). The principal bands in the Raman spectrum of auroselenide are at 93, 171, 200, 210 and 325 cm(-1). The empirical formula calculated on the basis of 2 atoms per formula unit is (Au0.98Ag0.01)S-0.99(Se0.79S0.17Te0.05)S1.01. Auroselenide is monoclinic, space group C-2/m, a = 8.319(1), b = 3.616(1), c = 6.276(2) A, ss = 104.54(2)degrees, V = 182.74(5) A3 and Z = 4. The strongest lines of the powder X-ray diffraction pattern [d, A (I, %) (hkl)] are: 4.015 (54) (200); 3.033 (25) (111, 002); 2.780 (100) (202, 111); 2.172 (20) (311, 310); and 1.811 (25) (113). Auroselenide is the natural analogue of synthetic ss-AuSe. The structural identity between them is confirmed by powder X-ray diffraction and Raman spectroscopy. The mineral is named according to its composition, as a combination of the main elements Au (aurum) and Se (selenium).
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - 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
Result continuities
Project
<a href="/en/project/GA22-26485S" target="_blank" >GA22-26485S: Synthetic platinum-group minerals and their applications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Mineralogical Magazine
ISSN
0026-461X
e-ISSN
1471-8022
Volume of the periodical
87
Issue of the periodical within the volume
2
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
284-291
UT code for WoS article
000956159400001
EID of the result in the Scopus database
2-s2.0-85144980690