 |
 |
|
Paar, W. H., Pring, A., Moelo, Y., Stanley, C. J., Putz, H., Topa, D., Roberts, A. C. & Braithwaite, R. S. W. (2009) Daliranite, PbHgAs2S6, a new sulphosalt from the Zarshouran Au-As deposit, Takab region, Iran. Mineral. Mag. 73 871–881.
Added by: Laurent Cournède (2016-03-10 21:41:23) |
| Type de référence: Article DOI: 10.1180/minmag.2009.073.5.871 Numéro d'identification (ISBN etc.): 0026-461X Clé BibTeX: Paar2009 Voir tous les détails bibliographiques  |
Catégories: CESES Mots-clés: arsenic, complexes, crystal-structure, daliranite, gold deposit, Iran, lead, mercury, mineralization, mineralogy, nw iran, sartorite, speciation, sulphosalt, West Azarbaijan province, Zarshouran deposit, zarshuran Créateurs: Braithwaite, Moelo, Paar, Pring, Putz, Roberts, Stanley, Topa Collection: Mineral. Mag. |
Consultations : 2/458
Indice de consultation : 3% Indice de popularité : 0.75% |
| Résumé |
|
{Daliranite, ideally PbHgAs2S6, occurs as a rare sulphosalt species at the Carlin-type Zarshouran Au-As deposit North of the town of Takab in the Province of West Azarbaijan, Iran. The new species is associated with orpiment, rarely with galkhaite, hutchinsonite and cinnabar. The strongly silicified matrix of the specimens has veinlets of sphalerite, with rare inclusions of galena and various (Cu)-Pb-As(Sb) sulphosalts. Daliranite occurs as matted nests of acicular and flexible fibres up to 200 mm in length and a width less than a few mm. The colour is orange-red with a pale orange-red streak and the lustre is adamantine. The mineral is transparent and does not fluoresce. The Mohs hardness is {<}2. Electron microprobe analyses give the empirical formula Pb0.95Tl0.01Hg1.04As2.10S5.91, ideally PbHgAs2S6; the calculated density is 5.93 g cm(-3). Unit-cell parameters were determined by an electron-diffraction study and refined from X-ray powder data. Daliranite is monoclinic primitive with a = 19.113(5) angstrom
Added by: Laurent Cournède |