منابع مشابه
Kôzulite, an Mn-rich alkali amphibole
The crystal structure of kôzulite, an Mn-rich alkali amphibole with the ideal formula NaNa(2)[Mn(4) (2+)(Fe(3+),Al)]Si(8)O(22)(OH)(2), tris-odium tetra-manganese iron/aluminium octa-silicate dihydroxide, was refined from a natural specimen with composition (K(0.20)Na(0.80))(Na(1.60)Ca(0.18)Mn(2+) (0.22))(Mn(2+) (2.14)Mn(3+) (0.25)Mg(2.20)Fe(3+) (0.27)Al(0.14))(Si(7.92)Al(0.06)Ti(0.02))O(22)[(OH...
متن کاملCl-rich Amphibole in Mil 03346 : Trace of Martian Soil in a Martian Meteorite
V. Sautter, A. Jambon and O. Boudouma. Laboratoire de Minéralogie, Muséum National d’Histoire Naturelle, CNRS UMR 7160, 61 rue Buffon , 75005 Paris, France (vsautter @mnhn.fr), 2 Laboratoire Magie, UMR 7047, Université P. et M. Curie Paris VI, case 110, 4 place Jussieu, 75252 Paris cedex 05, France ([email protected]), 3 Service MEB UFR 928, Université P. et M. Curie Paris VI, 4 place Juss...
متن کاملEnhanced magnetic refrigeration properties in Mn-rich Ni-Mn-Sn ribbons by optimal annealing
The influence of annealing time on temperature range of martensitic phase transition (ΔT(A-M)), thermal hysteresis (ΔThys), magnetic hysteresis loss (ΔMhys), magnetic entropy change (ΔS(M)) and relative refrigeration capacity (RC) of the Mn-rich Ni43Mn46Sn11 melt spun ribbons have been systematically studied. By optimal annealing, an extremely large ΔS(M) of 43.2 J.kg(-1)K(-1) and a maximum RC ...
متن کاملMineralogical features of amphibole in the Mashhad amphibole-peridotites
The Mashhad ultramafic complex with a Permo-Triassic stratigraphic age is exposed at the NE of Binaloud Mountain and the SW to NW of Mashhad city. This area is mainly composed of mafic and ultramafic rocks, metamorphosed carbonate and pelitic rocks and granitoids in a NW- SE trend. Serpentinized amphibole-peridotites are the main types of ultramafic rocks in this area. Minerals in these rocks i...
متن کاملElectronic and vibrational spectra of Mn rich sursassite.
The optical spectrum of Mn2+ in octahedral coordination for sursassite is characterized by well resolved bands at 580, 515, 470, 390, 340, and 295 nm (17240, 19420, 21280, 25640, 29410 and 33900 cm-1). Crystal field parameters evaluated from the observed bands are Dq=690, B=680 and C=2800 cm-1. A broad band centred around 13000 cm-1 attributed to Fe(III) ion is an impurity in sursassite confirm...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2010
ISSN: 1600-5368
DOI: 10.1107/s1600536810046015