Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Nickolayite, FeMoP, a new natural molybdenum phosphide. / Murashko, Mikhail N.; Britvin, Sergey N.; Vapnik, Yevgeny; Polekhovsky, Yury S.; Shilovskikh, Vladimir V.; Zaitsev, Anatoly N.; Vereshchagin, Oleg S.
в: Mineralogical Magazine, Том 86, № 5, 30.10.2022, стр. 749-757.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Nickolayite, FeMoP, a new natural molybdenum phosphide
AU - Murashko, Mikhail N.
AU - Britvin, Sergey N.
AU - Vapnik, Yevgeny
AU - Polekhovsky, Yury S.
AU - Shilovskikh, Vladimir V.
AU - Zaitsev, Anatoly N.
AU - Vereshchagin, Oleg S.
N1 - Publisher Copyright: © 2022 Cambridge University Press. All rights reserved.
PY - 2022/10/30
Y1 - 2022/10/30
N2 - Nickolayite, FeMoP, is a new terrestrial phosphide structurally related to allabogdanite (highpressure modification of (Fe,Ni)2P), meteoritic phosphides florenskyite, FeTiP and andreyivanovite, FeCrP. From the point of view of chemical composition, nickolayite is a Fe-analogue of monipite, MoNiP. The mineral was discovered in the Daba-Siwaqa complex (Central Jordan), a part of the pyrometamorphic Hatrurim Formation (the Mottled Zone), whose outcrops encompass a 150×200 km2 area around the Dead Sea in the Middle East. Nickolayite appears as an accessory phase in the fused clinopyroxene-plagioclase rocks texturally resembling gabbro-dolerite. The irregularly shaped grains of the mineral, up to 80 μ m in size are associated with baryte, tridymite, chromite, hematite, pyrrhotite, fluorapatite, titanite, and powellite. Macroscopically, nickolayite grains possess lightgrey to greyish-white colour and metallic lustre. The mineral is ductile. The mean VHN hardness (50 g load) is 538 kg mm-2. The calculated density based on the empirical formula and the unit-cell parameters is 7.819 g cm-1. In reflected light, nickolayite has white colour, with no bireflectance and pleochroism. The COM approved reflectance values [Rmax/Rmin (%), ?(nm)]: 48.5/46.5 (470), 50.5/48.5 (546), 51.8/49.9 (589), 53.9/52.0 (650). Chemical composition of the holotype crystal (electron microprobe, average of 4 analyses, wt.%): Fe 32.21, Mo 47.06, Ni 3.69, Co 0.13, P 17.45, Total 100.54, that corresponds to the empirical formula Fe1.00(Mo0.87Ni0.11Fe0.02)1.00P1.00 and an ideal formula of FeMoP. Nickolayite is orthorhombic, space group Pnma, unit-cell parameters of holotype material: a 5.9519(5), b 3.7070(3), c 6.8465(6) , V = 151.06(2) 3 and Z = 4. The crystal structure of holotype material was solved and refined to R1 = 0.0174 based on 251 unique observed reflections. The origin of the mineral is likely connected to the processes of co-reduction of molybdenum- and phosphorus-bearing minerals during high-temperature pyrometamorphic processes.
AB - Nickolayite, FeMoP, is a new terrestrial phosphide structurally related to allabogdanite (highpressure modification of (Fe,Ni)2P), meteoritic phosphides florenskyite, FeTiP and andreyivanovite, FeCrP. From the point of view of chemical composition, nickolayite is a Fe-analogue of monipite, MoNiP. The mineral was discovered in the Daba-Siwaqa complex (Central Jordan), a part of the pyrometamorphic Hatrurim Formation (the Mottled Zone), whose outcrops encompass a 150×200 km2 area around the Dead Sea in the Middle East. Nickolayite appears as an accessory phase in the fused clinopyroxene-plagioclase rocks texturally resembling gabbro-dolerite. The irregularly shaped grains of the mineral, up to 80 μ m in size are associated with baryte, tridymite, chromite, hematite, pyrrhotite, fluorapatite, titanite, and powellite. Macroscopically, nickolayite grains possess lightgrey to greyish-white colour and metallic lustre. The mineral is ductile. The mean VHN hardness (50 g load) is 538 kg mm-2. The calculated density based on the empirical formula and the unit-cell parameters is 7.819 g cm-1. In reflected light, nickolayite has white colour, with no bireflectance and pleochroism. The COM approved reflectance values [Rmax/Rmin (%), ?(nm)]: 48.5/46.5 (470), 50.5/48.5 (546), 51.8/49.9 (589), 53.9/52.0 (650). Chemical composition of the holotype crystal (electron microprobe, average of 4 analyses, wt.%): Fe 32.21, Mo 47.06, Ni 3.69, Co 0.13, P 17.45, Total 100.54, that corresponds to the empirical formula Fe1.00(Mo0.87Ni0.11Fe0.02)1.00P1.00 and an ideal formula of FeMoP. Nickolayite is orthorhombic, space group Pnma, unit-cell parameters of holotype material: a 5.9519(5), b 3.7070(3), c 6.8465(6) , V = 151.06(2) 3 and Z = 4. The crystal structure of holotype material was solved and refined to R1 = 0.0174 based on 251 unique observed reflections. The origin of the mineral is likely connected to the processes of co-reduction of molybdenum- and phosphorus-bearing minerals during high-temperature pyrometamorphic processes.
KW - Dead Sea
KW - Hatrurim Formation
KW - Middle East
KW - crystal structure
KW - gabbro-dolerite
KW - molybdenum
KW - phosphide
KW - pyrometamorphism
UR - http://www.scopus.com/inward/record.url?scp=85131885204&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/6e1aff1b-93cf-3494-a19c-e3449ed2e912/
U2 - 10.1180/mgm.2022.52
DO - 10.1180/mgm.2022.52
M3 - Article
AN - SCOPUS:85131885204
VL - 86
SP - 749
EP - 757
JO - Mineralogical Magazine
JF - Mineralogical Magazine
SN - 0026-461X
IS - 5
ER -
ID: 97263957