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НЕОБЫЧНО БОГАТЫЙ ЖЕЛЕЗОМ ДЖУЛГОЛДИТ-(Fe3+) ИЗ КАРАДАГСКОГО ВУЛКАНИЧЕСКОГО МАССИВА (КРЫМСКИЙ ПОЛУОСТРОВ). / Kasatkin, A. V.; Zubkova, N. V.; Chukanov, N. V.; Ksenofontov, D. A.; Škoda, R.; Tishchenko, A. I.; Voronin, M. V.; Britvin, S. N.; Pekov, I. V.
в: Zapiski Rossiiskogo Mineralogicheskogo Obshchestva, Том 150, № 6, 2021, стр. 96-112.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - НЕОБЫЧНО БОГАТЫЙ ЖЕЛЕЗОМ ДЖУЛГОЛДИТ-(Fe3+) ИЗ КАРАДАГСКОГО ВУЛКАНИЧЕСКОГО МАССИВА (КРЫМСКИЙ ПОЛУОСТРОВ)
AU - Kasatkin, A. V.
AU - Zubkova, N. V.
AU - Chukanov, N. V.
AU - Ksenofontov, D. A.
AU - Škoda, R.
AU - Tishchenko, A. I.
AU - Voronin, M. V.
AU - Britvin, S. N.
AU - Pekov, I. V.
N1 - Publisher Copyright: © 2021 Eco-Vector LLC. All rights reserved.
PY - 2021
Y1 - 2021
N2 - Julgoldite-(Fe3+), a rare mineral of the pumpellyite group, has been found at the Karadag volcanic massif (Crimea peninsula) as black radial aggregates up to 0.5 cm in diameter with. It occurs in cracks of a volcanic rock and is associated with quartz. Its chemical composition [wt. %, electron microprobe analysis (EMPA), Fe3+ : Fe2+ ratio calculated from Mössbauer data] is: CaO 20.40, MgO 0.35, MnO 0.10, FeO 3.62, Al2O3 0.10, Fe2O3 37.91, SiO2 32.86, H2O (calc.) 5.68, total 101.02. Parameters of monoclinic unit cell refined from powder X-ray diffraction (XRD) data are: a = 8.8885(7), b = 6.0791(4), c = 19.3679(14) Å, β = 97.499(5)°, V = = 1037.58(13) Å3; space group A2/m. The combination of the results of EMPA and XRD together with Mössbauer, IR and Raman spectroscopic data makes it possible to write the crystal chemical formula of Karadag julgoldite-(Fe3+) with such possible variations in the distribution of Fe3+ and Fe2+ between the X and Y structural sites: Ca2.00X (Fe30.77–0.62+ Fe0.13–0.282 + Mg0.05Mn0.01)Σ0.95 Y(Fe1.84–1.993+ Fe0.15–0.002 + Al0.01 )Σ2.00[Si2OO106 (OH,O)][SiO4]O11(OH,O)O7(OH,H2O)O5(OH). The Karadag mineral is unusually rich in iron and almost does not contain a pumpellyite component. In addition, unlike many other minerals of the pumpellyite group, where all the hydrogen belongs to OH groups, julgoldite-(Fe3+) from Karadag contains molecular water, albeit in a small amount.
AB - Julgoldite-(Fe3+), a rare mineral of the pumpellyite group, has been found at the Karadag volcanic massif (Crimea peninsula) as black radial aggregates up to 0.5 cm in diameter with. It occurs in cracks of a volcanic rock and is associated with quartz. Its chemical composition [wt. %, electron microprobe analysis (EMPA), Fe3+ : Fe2+ ratio calculated from Mössbauer data] is: CaO 20.40, MgO 0.35, MnO 0.10, FeO 3.62, Al2O3 0.10, Fe2O3 37.91, SiO2 32.86, H2O (calc.) 5.68, total 101.02. Parameters of monoclinic unit cell refined from powder X-ray diffraction (XRD) data are: a = 8.8885(7), b = 6.0791(4), c = 19.3679(14) Å, β = 97.499(5)°, V = = 1037.58(13) Å3; space group A2/m. The combination of the results of EMPA and XRD together with Mössbauer, IR and Raman spectroscopic data makes it possible to write the crystal chemical formula of Karadag julgoldite-(Fe3+) with such possible variations in the distribution of Fe3+ and Fe2+ between the X and Y structural sites: Ca2.00X (Fe30.77–0.62+ Fe0.13–0.282 + Mg0.05Mn0.01)Σ0.95 Y(Fe1.84–1.993+ Fe0.15–0.002 + Al0.01 )Σ2.00[Si2OO106 (OH,O)][SiO4]O11(OH,O)O7(OH,H2O)O5(OH). The Karadag mineral is unusually rich in iron and almost does not contain a pumpellyite component. In addition, unlike many other minerals of the pumpellyite group, where all the hydrogen belongs to OH groups, julgoldite-(Fe3+) from Karadag contains molecular water, albeit in a small amount.
KW - Crimea peninsula
KW - Crystal structure
KW - IR spectrum
KW - Julgoldite-(Fe)
KW - Karadag volcanic massif
KW - Mössbauer spectrum
KW - Pumpellyite group
KW - Raman spectrum
UR - http://www.scopus.com/inward/record.url?scp=85123699500&partnerID=8YFLogxK
U2 - 10.31857/S0869605521060034
DO - 10.31857/S0869605521060034
M3 - статья
AN - SCOPUS:85123699500
VL - 150
SP - 96
EP - 112
JO - ЗАПИСКИ РОССИЙСКОГО МИНЕРАЛОГИЧЕСКОГО ОБЩЕСТВА
JF - ЗАПИСКИ РОССИЙСКОГО МИНЕРАЛОГИЧЕСКОГО ОБЩЕСТВА
SN - 0869-6055
IS - 6
ER -
ID: 93117792