Record details

Title
    Jacutingaite, Pt HgSe , a new platinum-group mineral from the Caue iron-ore deposit, Itabira District, Minas Gerais, Brazil
Author
    Cabral, Alexandre
    Drábek, Milan
    Drahokoupil, Jan
    Galbiatti, Henry
    Haloda, Jakub
    Laufek, František
    Lehmann, Bernd
    Sidorinová, Tamara
    Vymazalová, Anna
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Canadian Mineralogist
Vol./nr.
    Roč. 50, č. 2
Pages
    10
Year
    2012
Thesaurus term
    jacutingaite, platinum-group mineral, Pt-Hg selenide, electron-microprobe data, reflectance data, synthetic Pt2HgSe3, X-ray-diffraction data, crystal structure, Caue deposit, Minas Gerais, Brazil.
Keyword
    Brazil
    Caue
    Deposit
    District
    Gerais
    HgSe
    Iron-ore
    Itabira
    Jacutingaite
    Minas
    Mineral
    New
    Platinum-group
Abstract (in english)
   Jacutingaite, Pt2HgSe3, is a new platinum-group mineral discovered at the Caue iron-ore deposit, Itabira district, Minas Gerais, Brazil. Observed in a polished section, the mineral is about 50 ?m across and occurs on an aggregate of atheneite, potarite and hematite. The new mineral is partly altered to a Pt-O phase. Synthetic jacutingaite is megascopically grey in color, has a metallic luster and a grey streak. The mineral is brittle, with a very good {001} cleavage. The mineral is trigonal, space group P m1, with a 7.3477(2), c 5.2955(1) A, V 247.59(1) A3 and Z = 2. The crystal structure was solved and refined from the powder X-ray-diffraction data of synthetic Pt2HgSe3. Jacutingaite is isostructural with Pt4Tl2X6 (X = S, Se, or Te); no structural analogue is known as a mineral. Jacutingaite is structurally related to sudovikovite.
Contributor
    Česká geologická služba
Contributor code
    ČGS (RIV)
Source format
    R
Import date
    15. 10. 2014