Hercynite R170038



Name: Hercynite
RRUFF ID: R170038
Ideal Chemistry: Fe2+Al2O4
Locality: LePrese, Veltlin, Switzerland
Source: Rock Currier [view label]
Owner: UAMM
Description: Dark-green grains
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Spinel (57) ]
CHEMISTRY 
RRUFF ID: R170038.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Fe0.65Mg0.35Mn0.01)(Al1.96Fe0.04)O4 (Probed together with R130646).
Microprobe Data File: [ Download Excel File ]
POWDER DIFFRACTION 
RRUFF ID: R170038.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 8.1313(19)Å    b: 8.1313(19)Å    c: 8.1313(19)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 537.63(5)Å3    Crystal System: cubic
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REFERENCES for Hercynite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Zippe F X M (1839) Ueber den hercinit, eine bisher unbekannt gebliebene spezies des mineralreiches, Verhandlungen der Gesellschaft des Vaterländischen Museums in Böhmen, 1839, 19-27   [view file]

Verwey E J W, Heilmann E L (1947) Physical properties and cation arrangement of oxides with spinel structures, Journal of Chemical Physics, 15, 174-180

Bernier L R (1990) Vanadiferous zincian-chromian hercynite in a metamorphosed basalt-hosted alternation zone, Atik Lake, Manitoba, The Canadian Mineralogist, 28, 37-50   [view file]

Larsson L, O'Neill H St C, Annersten H (1994) Crystal chemistry of synthetic hercynite (FeAl2O4) from XRD structural refinements and Mössbauer spectroscopy, European Journal of Mineralogy, 6, 39-51

Harrison R J, Redfern S A T, O'Neil H St. C (1998) The temperature dependence of the cation distribution in synthetic hercynite (FeAl2O4) from in-situ neutron structure refinements, American Mineralogist, 83, 1092-1099   [view file]

Lavina B, Cesare B, Álvarez-Valero A M, Uchida H, Downs R T, Koneva A, Dera P (2009) Closure temperatures of intracrystalline ordering in anatectic and metamorphic hercynite, Fe2+Al2O4, American Mineralogist, 94, 657-665   [view file]

Bromiley G D, Gatta G D, Stokes T (2015) Manganese incorporation in synthetic hercynite, Mineralogical Magazine, 79, 635-647

Nestola F, Periotto B, Anzolini C, Andreozzi G B, Woodland A B, Lenaz D, Alvaro M, Princivalle F (2015) Equation of state of hercynite, FeAl2O4, and high-pressure systematics of Mg-Fe-Cr-Al spinels, Mineralogical Magazine, 79, 285-294

Jastrzębska I, Szczerba J, Błachowski A, Stoch P (2017) Structure and microstructure evolution of hercynite spinel (Fe2+Al2O4) after annealing treatment, European Journal of Mineralogy, 29, 63-72