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vanadio-pargasite

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Journal Article
Published: 01 September 2018
European Journal of Mineralogy (2018) 30 (5): 981–987.
...Georgia Cametti; Thomas Armbruster; Leonid Z. Reznitsky; Evgeny V. Sklyarov; Giancarlo Della Ventura The crystal structure of a new member of the calcium amphibole subgroup, vanadio-pargasite ideally NaCa 2 (Mg 4 V 3+ )Si 6 Al 2 O 22 (OH) 2 with empirical formula (K 0.07 Na 0.90 )(Na 0.05 Ca 1.91...
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Crystal structure of <b>vanadio</b>-<b>pargasite</b>, NaCa 2 (Mg 4 V 3+ )Si 6 Al 2 O 22 (...
Published: 01 September 2018
Fig. 1 Crystal structure of vanadio-pargasite, NaCa 2 (Mg 4 V 3+ )Si 6 Al 2 O 22 (OH) 2 , projected along the a axis (VESTA: Momma & Izumi, 2011 ). M (2) is occupied by V 3+ and other trivalent cations whereas M (1) and M (3) are mainly occupied by Mg; M (4) is occupied by Ca. T (1
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The OH-stretching FTIR spectrum of <b>vanadio</b>-<b>pargasite</b> (this work) compared w...
Published: 01 September 2018
Fig. 2 The OH-stretching FTIR spectrum of vanadio-pargasite (this work) compared with the spectrum of synthetic end-member pargasite (data from Della Ventura et al. , 1999 ).
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The OH-stretching FTIR spectrum of <b>vanadio</b>-<b>pargasite</b> resolved into Gaussian...
Published: 01 September 2018
Fig. 3 The OH-stretching FTIR spectrum of vanadio-pargasite resolved into Gaussian components (broken lines). Squares, experimental data; full line, sum of fitted components.
Journal Article
Published: 01 December 2018
American Mineralogist (2018) 103 (12): 2036–2048.
..., javorieite, kampelite, roymillerite, tredouxite, vanadio-pargasite, and wilancookite. Included also is a series of pyrochlore supergroup minerals: fluorcalciopyrochlore, hydroxycalciomicrolite, hydroxyferroroméite, hydroxykenoelsmoreite, hydroxynatropyrochlore, oxynatromicrolite along with a new data...
Journal Article
Published: 01 March 2017
American Mineralogist (2017) 102 (3): 612–619.
... Cr 0.2 5 0 17 2 Chromium (14) Cr 5 0 17, 19 3 Ferchromide (2) Cr 1.5 Fe 0.2 5 0 17 4 Bentorite (1) Ca 6 Cr 2 (SO 4 ) 3 (OH) 12 ·26H 2 O 5 3 4 5 Bracewellite (2) CrO(OH) 6 3 6 6 Chromceladonite (1) KMgCrSi 4 O 10 (OH) 2 3 3 11 7 Chromio-pargasite...
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