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Pampaloite, AuSbTe, a new mineral from Pampalo gold mine, Finland

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F19%3A00000019" target="_blank" >RIV/00025798:_____/19:00000019 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/68378271:_____/19:00519129

  • Výsledek na webu

    <a href="https://www.cambridge.org/core/journals/mineralogical-magazine/article/pampaloite-ausbte-a-new-mineral-from-pampalo-gold-mine-finland/974D494CE21F91E4A31E303C836F289D" target="_blank" >https://www.cambridge.org/core/journals/mineralogical-magazine/article/pampaloite-ausbte-a-new-mineral-from-pampalo-gold-mine-finland/974D494CE21F91E4A31E303C836F289D</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1180/mgm.2018.129" target="_blank" >10.1180/mgm.2018.129</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Pampaloite, AuSbTe, a new mineral from Pampalo gold mine, Finland

  • Popis výsledku v původním jazyce

    Pampaloite, AuSbTe is a new mineral discovered in the Pampalo gold deposit, Finland. It forms anhedral grains (up to about 20 micrometer) intergrown with gold, frohbergite and altaite. Pampaloite is brittle and has a metallic lustre. Values of VHN25 lie between 245 and 295 kg/mm2, with a mean value of 276 kg/mm2, corresponding to a Mohs hardness of approximately 4-5 (measured on synthetic material). In plane-polarized light, pampaloite is white with medium to strong bireflectance, weak reflectance pleochroism from slightly pinkish-brown to slightly bluish white (only visible in grains of synthetic material containing multiple orientations), and strong anisotropy, with blue to light brown rotation tints; it exhibits no internal reflections. Reflectance values of pampaloite in air (R1, R2 in percent) are: 60.0, 62.5 at 470 nm, 62.5, 64.8 at 546 nm, 63.2, 65.6 at 589 nm and 63.7, 66.0 at 650 nm. Ten electron-microprobe analyses of natural pampaloite give an average composition: Au 44.13, Sb 27.44, and Te 28.74, total 100.31 wt.percent, corresponding to the empirical formula Au1.00Sb1.00Te1.00 based on 3 atoms; the average of eleven analyses on synthetic pampaloite is: Au 44.03, Sb 27.26, and Te 29.08, total 100.38 wt.percent, corresponding to Au0.99Sb1.00Te1.01. The density, calculated on the basis of the empirical formula, is 9.33 g/cm3.The mineral is monoclinic, space group C2/c, with a 11.947(3), b 4.481(1) angstroem, c 12.335(3) angstroem, beta 105.83(2)º, V 635.3(3) angstroem3 and Z = 8. The crystal structure was solved and refined from the single-crystal X-ray-diffraction data of synthetic AuSbTe. Pampaloite crystal structure can be considered as a monoclinic derivative of the CdI2-structure composed of [AuTe3Sb3] octahedra. The strongest lines in the X-ray powder diffraction pattern of synthetic pampaloite [d in angstroem (I) (hkl)] are: 4.846(24)(-202), 3.825(18)(111), 2.978(100)(-311), 2.968(50)(004), 2.242(25)(020), 2.144(55)(313), 2.063(33)(-315), 1.789(18)(024). The mineral is named for the locality, the Pampalo gold mine in Finland.

  • Název v anglickém jazyce

    Pampaloite, AuSbTe, a new mineral from Pampalo gold mine, Finland

  • Popis výsledku anglicky

    Pampaloite, AuSbTe is a new mineral discovered in the Pampalo gold deposit, Finland. It forms anhedral grains (up to about 20 micrometer) intergrown with gold, frohbergite and altaite. Pampaloite is brittle and has a metallic lustre. Values of VHN25 lie between 245 and 295 kg/mm2, with a mean value of 276 kg/mm2, corresponding to a Mohs hardness of approximately 4-5 (measured on synthetic material). In plane-polarized light, pampaloite is white with medium to strong bireflectance, weak reflectance pleochroism from slightly pinkish-brown to slightly bluish white (only visible in grains of synthetic material containing multiple orientations), and strong anisotropy, with blue to light brown rotation tints; it exhibits no internal reflections. Reflectance values of pampaloite in air (R1, R2 in percent) are: 60.0, 62.5 at 470 nm, 62.5, 64.8 at 546 nm, 63.2, 65.6 at 589 nm and 63.7, 66.0 at 650 nm. Ten electron-microprobe analyses of natural pampaloite give an average composition: Au 44.13, Sb 27.44, and Te 28.74, total 100.31 wt.percent, corresponding to the empirical formula Au1.00Sb1.00Te1.00 based on 3 atoms; the average of eleven analyses on synthetic pampaloite is: Au 44.03, Sb 27.26, and Te 29.08, total 100.38 wt.percent, corresponding to Au0.99Sb1.00Te1.01. The density, calculated on the basis of the empirical formula, is 9.33 g/cm3.The mineral is monoclinic, space group C2/c, with a 11.947(3), b 4.481(1) angstroem, c 12.335(3) angstroem, beta 105.83(2)º, V 635.3(3) angstroem3 and Z = 8. The crystal structure was solved and refined from the single-crystal X-ray-diffraction data of synthetic AuSbTe. Pampaloite crystal structure can be considered as a monoclinic derivative of the CdI2-structure composed of [AuTe3Sb3] octahedra. The strongest lines in the X-ray powder diffraction pattern of synthetic pampaloite [d in angstroem (I) (hkl)] are: 4.846(24)(-202), 3.825(18)(111), 2.978(100)(-311), 2.968(50)(004), 2.242(25)(020), 2.144(55)(313), 2.063(33)(-315), 1.789(18)(024). The mineral is named for the locality, the Pampalo gold mine in Finland.

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    10504 - Mineralogy

Návaznosti výsledku

  • 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)

Ostatní

  • Rok uplatnění

    2019

  • Kód důvěrnosti údajů

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

Údaje specifické pro druh výsledku

  • Název periodika

    Mineralogical Magazine

  • ISSN

    0026-461X

  • e-ISSN

  • Svazek periodika

    83

  • Číslo periodika v rámci svazku

    3

  • Stát vydavatele periodika

    GB - Spojené království Velké Británie a Severního Irska

  • Počet stran výsledku

    8

  • Strana od-do

    393-400

  • Kód UT WoS článku

    000478061800007

  • EID výsledku v databázi Scopus

    2-s2.0-85068656546