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    Honeaite, a new gold-thallium-telluride from the Eastern Goldfields, Yilgarn Craton, Western Australia

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    Authors
    Rice, CM
    Welch, MD
    Still, JW
    Criddle, AJ
    Stanley, Christopher cc
    Issue date
    2016-01-24
    Submitted date
    2016-04-01
    Subject Terms
    honeaite
    eastern goldfields
    western australia
    gold-thallium-telluride
    new mineral
    
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    Abstract
    Honeaite, ideal formula Au3TlTe2, is a new mineral from the late Archaean Karonie gold deposit, Eastern Goldfields province, Western Australia. Honeaite is found with native gold, tellurobismuthite, petzite, hessite, calaverite, melonite, mattagamite, frohbergite, altaite, pyrrhotite and molybdenite. These minerals are concentrated in microvughs and microfractures mainly within areas of prehnite alteration of amphibolite. The mineralisation appears to have been deposited under greenschistfacies conditions at lower temperatures than most gold deposits in the Eastern Goldfields. Single-crystal X-ray studies identified the structure of honeaite as orthorhombic, space group Pbcm, and unit cell parameters a = 8.9671(4) Å, b = 8.8758(4) Å, c = 7.8419(5) Å, V = 624.14(6) Å3 (Z = 4). The strongest reflections of the calculated powder X-ray diffraction pattern are [d in Å (I rel)(hkl)]: 2.938(100)(022), 2.905 (39,8)(322, 411), 2.989 (31)(300), 2.833 (23)(310), 1.853 (17)(332). Electron-microprobe analysis (EDS mode) gave (wt%) Au 56.33, Tl 19.68, Te 24.30, total 100.31, leading to an empirical formula (based on 2 Te apfu) of Au3.00Tl1.01Te2.00. Honeaite is black with a metallic lustre and no observed cleavage. The calculated density is 11.18 g/cm3. In reflected plane-polarized light it is slightly bluish grey. Between crossed polars it is weakly anisotropic with dark brown to dark blue rotation tints. Reflectance values in air and in oil are given. Honeaite is named after the late Russell M. Honea (1929–2002).
    Citation
    Rice, Clive M.; Welch, Mark D.; Still, John W.; Criddle, Alan J.; Stanley, Chris J. (2016) "Honeaite, a new gold-thallium-telluride from the Eastern Goldfields, Yilgarn Craton, Western Australia." European Journal of Mineralogy 28(5): 979-990.
    Journal
    European Journal of Mineralogy
    URI
    http://hdl.handle.net/10141/622756
    DOI
    10.1127/ejm/2016/0028-2559
    Type
    Journal Article
    Item Description
    © 2016 E. Schweizerbart'sche Verlagsbuchhandlung, D-70176 Stuttgart. This document is the author's final accepted version of the journal article. You are advised to consult the publisher's version if you wish to cite from it.
    ISSN
    0935-1221
    ae974a485f413a2113503eed53cd6c53
    10.1127/ejm/2016/0028-2559
    Scopus Count
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    Earth sciences

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