Maletoyvayamite, Au3Se4Te6, a new mineral from Maletoyvayam deposit, Kamchatka peninsula, Russia

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F20%3A00000084" target="_blank" >RIV/00025798:_____/20:00000084 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/20:00533332 RIV/00216208:11310/20:10411530

Výsledek na webu

<a href="https://www.cambridge.org/core/journals/mineralogical-magazine/article/abs/maletoyvayamite-au3se4te6-a-new-mineral-from-maletoyvayam-deposit-kamchatka-peninsula-russia/F20490FDE4B3B65374DDE3FF2F5F1D36" target="_blank" >https://www.cambridge.org/core/journals/mineralogical-magazine/article/abs/maletoyvayamite-au3se4te6-a-new-mineral-from-maletoyvayam-deposit-kamchatka-peninsula-russia/F20490FDE4B3B65374DDE3FF2F5F1D36</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1180/mgm.2019.81" target="_blank" >10.1180/mgm.2019.81</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Maletoyvayamite, Au3Se4Te6, a new mineral from Maletoyvayam deposit, Kamchatka peninsula, Russia

Popis výsledku v původním jazyce

Maletoyvayamite, Au3Se4Te6, is a new mineral discovered in a heavy-mineral concentrate from the Gaching occurrence of theMaletoyvayam deposit, Kamchatka, Russia (60°19′51.87′′N, 164°46′25.65′′E). It forms anhedral grains (10 to 50 micrometer in size) and isfound in intergrowths with native gold (Au–Ag), Au tellurides (calaverite), unnamed phases (AuSe, Au2TeSe and Au oxide), native tellurium,sulfosalts (tennantite, tetrahedrite, goldfieldite and watanabeite) and supergene tripuhyite. Maletoyvayamite has a good cleavage on{010} and {001}. In plane-polarised light, maletoyvayamite is grey, has strong bireflectance (grey to bluish grey), and strong anisotropy;it exhibits no internal reflections. Reflectance values for maletoyvayamite in air (Rmin, Rmax in percent) are: 38.9, 39.1 at 470 nm; 39.3, 39.5 at546 nm; 39.3, 39.6 at 589 nm; and 39.4, 39.7 at 650 nm. Sixteen electron-microprobe analyses of maletoyvayamite gave an average composition:Au 34.46, Se 16.76, Te 47.23 and S 0.84, total 99.29 wt.percent, corresponding to the formula Au2.90(Se3.52S0.44)sigma3.96Te6.14 based on13 atoms; the average of eleven analyses on synthetic analogue is: Au 34.20, Se 19.68 and Te 45.42, total 99.30 wt.percent, correspondingto Au2.90Se4.16Te5.94. The calculated density is 7.98 g/cm3. The mineral is triclinic, space group P1, with a = 8.901(2), b = 9.0451(14),c = 9.265(4) angstroem, alfa = 97.66(3), beta = 106.70(2), gama = 101.399(14)°, V = 685.9(4) angstroem3 and Z = 2. The crystal structure of maletoyvayamite representsa unique structure type resembling a molecular structure. There are cube-like [Au6Se8Te12] clusters linked via van der Waalsinteractions. The structural identity of maletoyvayamite with the synthetic Au3Se4Te6 was confirmed by powder X-ray diffractionand Raman spectroscopy.

Název v anglickém jazyce

Maletoyvayamite, Au3Se4Te6, a new mineral from Maletoyvayam deposit, Kamchatka peninsula, Russia

Popis výsledku anglicky

Maletoyvayamite, Au3Se4Te6, is a new mineral discovered in a heavy-mineral concentrate from the Gaching occurrence of theMaletoyvayam deposit, Kamchatka, Russia (60°19′51.87′′N, 164°46′25.65′′E). It forms anhedral grains (10 to 50 micrometer in size) and isfound in intergrowths with native gold (Au–Ag), Au tellurides (calaverite), unnamed phases (AuSe, Au2TeSe and Au oxide), native tellurium,sulfosalts (tennantite, tetrahedrite, goldfieldite and watanabeite) and supergene tripuhyite. Maletoyvayamite has a good cleavage on{010} and {001}. In plane-polarised light, maletoyvayamite is grey, has strong bireflectance (grey to bluish grey), and strong anisotropy;it exhibits no internal reflections. Reflectance values for maletoyvayamite in air (Rmin, Rmax in percent) are: 38.9, 39.1 at 470 nm; 39.3, 39.5 at546 nm; 39.3, 39.6 at 589 nm; and 39.4, 39.7 at 650 nm. Sixteen electron-microprobe analyses of maletoyvayamite gave an average composition:Au 34.46, Se 16.76, Te 47.23 and S 0.84, total 99.29 wt.percent, corresponding to the formula Au2.90(Se3.52S0.44)sigma3.96Te6.14 based on13 atoms; the average of eleven analyses on synthetic analogue is: Au 34.20, Se 19.68 and Te 45.42, total 99.30 wt.percent, correspondingto Au2.90Se4.16Te5.94. The calculated density is 7.98 g/cm3. The mineral is triclinic, space group P1, with a = 8.901(2), b = 9.0451(14),c = 9.265(4) angstroem, alfa = 97.66(3), beta = 106.70(2), gama = 101.399(14)°, V = 685.9(4) angstroem3 and Z = 2. The crystal structure of maletoyvayamite representsa unique structure type resembling a molecular structure. There are cube-like [Au6Se8Te12] clusters linked via van der Waalsinteractions. The structural identity of maletoyvayamite with the synthetic Au3Se4Te6 was confirmed by powder X-ray diffractionand Raman spectroscopy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10504 - Mineralogy

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Mineralogical Magazine

ISSN

0026-461X

e-ISSN

—

Svazek periodika

84

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

117-123

Kód UT WoS článku

000535539400010

EID výsledku v databázi Scopus

2-s2.0-85082104673