On Composition of Meliphanite from Nepheline Syenite Pegmatite of the Sakharjok Massif, Kola Peninsula


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Resumo

The rare beryllium silicate, meliphanite, from nepheline syenite pegmatite of the Sakharjok massif, Kola Peninsula has been studied. The chemical composition of the mineral has been refined using infrared and Raman spectroscopy; bulk chemical, thermal, and electron microprobe analyses; and singe crystal X-ray diffraction. The obtained data unambiguously support the presence of H2O in the mineral and refine the crystal chemical formula of meliphanite from Sakharjok: Ca4.00(Na3.12Ca0.88)Σ4.00(Be3.60Si0.40)Σ4.00Al1.00(Si6.74Be0.26)Σ7.00O24.00[F3.33(OH)0.51O0.16]Σ4.00.

Sobre autores

L. Lyalina

Geological Institute, Kola Science Centre, Russian Academy of Sciences

Autor responsável pela correspondência
Email: lialina@geoksc.apatity.ru
Rússia, Apatity, 184209

G. Kadyrova

Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Centre,
Russian Academy of Sciences

Email: lialina@geoksc.apatity.ru
Rússia, Apatity, 184209

E. Selivanova

Geological Institute, Kola Science Centre, Russian Academy of Sciences

Email: lialina@geoksc.apatity.ru
Rússia, Apatity, 184209

A. Zolotarev Jr.

Institute of Earth Sciences, Saint Petersburg State University

Email: lialina@geoksc.apatity.ru
Rússia, Saint Petersburg, 199034

Ye. Savchenko

Geological Institute, Kola Science Centre, Russian Academy of Sciences

Email: lialina@geoksc.apatity.ru
Rússia, Apatity, 184209

T. Panikorovskii

Laboratory of Nature-Inspired Technologies and Environmental Safety of the Arctic, Kola Science Centre,
Russian Academy of Sciences

Email: lialina@geoksc.apatity.ru
Rússia, Apatity, 184209

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