• Fischesserite Mineral Data

    www.webmineral.com/data/Fischesserite.shtml Fischesserite Klockmannite Comments: Pinkish-grey fischesserite (Fl) with fine-grained bluish-grey klockmannite (Kl) and grey clausthalite (Cl). Polished section from microprobe analysis in reflected light, parallel nicols.
  • Fischesserite‐Inspired Recyclable Se‐Polyurethanes for ...

    onlinelibrary.wiley.com/doi/abs/10.1002/adsu.202000072 Inspired by fischesserite, the first naturally occurring selenide of gold, a novel selenium‐containing polyurethane (Se‐polyurethane) is prepared. This material is able to extract aqueous gold in its elemental form with a selectivity 437 times over Cu 2+ and 443 times over Ni 2+ and a capacity of 802 mg gold g ‐1 .
  • Fischesserite dictionary definition | fischesserite defined

    www.yourdictionary.com/fischesserite fischesserite definition: Noun 1. (mineralogy) An isometric-gyroidal silver white mineral containing gold, selenium, and silver.Origin -ite...
  • Fischesserite - Mindat.org - Mines, Minerals and More

    www.mindat.org/gm/1552 Fischesserite De Lamar Mine, De Lamar Mining District, Owyhee Co., Idaho, USA A sawn face, showing black snotty grains of fishesserite with pyrite, 0.75 cm field of view.
  • Fischesserite Ag3AuSe2 - Handbook of Mineralogy

    www.handbookofmineralogy.org/pdfs/fischesserite.pdf Fischesserite Ag3AuSe2 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Cubic. Point Group: 432. Massive; in xenomorphic grains, to 1 mm. Physical Properties: Hardness = n.d. VHN = 32.7 (50 g load).
  • (PDF) Mössbauer Spectroscopy of the Ag-Au Chalcogenides ...

    www.researchgate.net/.../259266699_Mossbauer_Spectroscopy_of_the_Ag-Au_Chalco... Mossbauer spectra of the 77.3 keV gamma-rays of 197Au were measured at 4.2 K for natural and synthetic Ag3AuTe2 (petzite), synthetic Ag3AuSe2 (fischesserite) and synthetic Ag3AuS2 (uytenbogaardtite).

    www.researchgate.net/profile/Luca_Bindi/.../00b4952a99e4c116b2000000.pdf Fischesserite is optically isotropic, silver white in color with a metallic luster. In reflected light, the mineral is pink. Where observed near naumannite, it appears darker with slightly bluish ...
  • AMCSD Search Results - Raman Spectroscopy

    rruff.geo.arizona.edu/AMS/result.php Fischesserite: Bindi L, Cipriani C: The Canadian Mineralogist 42 (2004) 1733-1737: Structural and physical properties of fischesserite, a rare gold-silver selenide from the De Lamar mine, Owyhee County, Idaho, USA: Locality: De Lamar mine, Owyhee County, Idaho, USA _database_code_amcsd 0005994: 9.965 9.965 9.965 90 90 90 I4_132
  • Isomorphism and solid solutions among Ag- and Au-selenides ...

    www.sciencedirect.com/science/article/pii/S0022459616302353 The sample with х=0.25 is a mixture of naumannite and fischesserite. The profiles of other samples display peaks of fischesserite Ag 3 AuSe 2 and β-AuSe (card 04-004-4751). As the fraction of gold in the total composition of sample increases, the content of fischesserite decreases with the proportional growth of AuSe concentration.
  • mp-3172: Ag3AuSe2 (cubic, I4_132, 214)

    materialsproject.org/materials/mp-3172 Ag3AuSe2 crystallizes in the cubic I4_132 space group. The structure is three-dimensional. Au1+ is bonded in a 8-coordinate geometry to six equivalent Ag1+ and two equivalent Se2- atoms. All Au–Ag bond lengths are 3.08 Å. Both Au–Se bond lengths are 2.50 Å. Ag1+ is bonded in a 6-coordinate geometry to two equivalent Au1+ and four equivalent Se2- atoms.