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Refinement of the crystal structure of vayrynenite

D. M. C. Huminicki and F. C. Hawthorne
Refinement of the crystal structure of vayrynenite
The Canadian Mineralogist (December 2000) 38, Part 6: 1425-1432


Vaeyrynenite, (Mn (super 2+) (sub 0.78) Fe (super 2+) (sub 0.23) Mg (sub 0.01) )Be(PO (sub 4) )(OH (sub 0.92) F (sub 0.08) ), is monoclinic, a 5.4044, b 14.5145, c 4.7052 Aa, beta 102.798 degrees , V 359.91 Aa (super 3) , space group P2 (sub 1) /a, Z = 4. The structure was refined to R 1.5%, and has Bephi (sub 4) tetrahedra connected to adjacent Bephi (sub 4) tetrahedra by corner-sharing of anions in a zigzag pattern to form a chain extending in the a direction. This chain is decorated along its periphery by PO (sub 4) tetrahedra that corner-share with one O atom from each of two different Bephi (sub 4) tetrahedra to form ribbons along the c axis. These [Be (sub 2) (OH) (sub 2) (PO (sub 4) ) (sub 2) ] (super 4n-) (sub n) ribbons are linked in the b direction by (Mn (super 2+) ,Fe (super 2+) ) in octahedra coordination. The resultant (001) sheets are linked to adjacent sheets in the c direction by corner-sharing O atoms between PO (sub 4) tetrahedra and [(Mn,Fe) (sub phi 6) ] octahedra and by hydrogen bonds.

ISSN: 0008-4476
EISSN: 1499-1276
Coden: CAMIA6
Serial Title: The Canadian Mineralogist
Serial Volume: 38, Part 6
Title: Refinement of the crystal structure of vayrynenite
Affiliation: University of Manitoba, Department of Geological Sciences, Winnipeg, MB, Canada
Pages: 1425-1432
Published: 200012
Text Language: English
Summary Language: French
Publisher: Mineralogical Association of Canada, Ottawa, ON, Canada
References: 19
Accession Number: 2001-066987
Categories: Mineralogy of non-silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 5 tables
Country of Publication: Canada
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
Update Code: 200121
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