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vayrynenite

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Photographs of minerals from the Himalaya orogenic belt, Gilgit District, n...

Photographs of minerals from the Himalaya orogenic belt, Gilgit District, n...

Published: 01 May 2014
Figure 4 Photographs of minerals from the Himalaya orogenic belt, Gilgit District, northern Pakistan. ( a ) Väyrynenite from the Shengus pegmatite, Nanga Parbat-Haramosh massif. Age is estimated to be 5 Ma ( Laurs et al. 1998 ). Photograph of sample R050590 reproduced with permission from
Journal Article

An unusual occurrence of two lithiophilite pods with narrow interconnection and two types of rhodochrosite mineralization at the Emmons pegmatite, Oxford Co., Maine

Alexander U. Falster, William B. Simmons
Published: 30 September 2019
The Canadian Mineralogist (2019) 57 (5): 733–734.
DOI: https://doi.org/10.3749/canmin.AB00007
... to be metasomatised. Pink masses of väyrynenite occur at the area of interaction of lithiophilite with altered beryl. Beryllonite, roscherite, moraesite and hydroxylherderite also occur in this assemblage. Raspberry-red pezzottaite is found near a small pollucite pod and an altered beryl. Near sulfide...
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Journal Article

Nomenclature of the gadolinite supergroup

Peter Bačík, Ritsuro Miyawaki, Daniel Atencio, Fernando Cámara, Jana Fridrichová
Published: 09 June 2017
European Journal of Mineralogy (2017) 29 (6): 1067–1082.
DOI: https://doi.org/10.1127/ejm/2017/0029-2659
... of these invalid species as well as other minerals mistakenly included in the gadolinite supergroup is reported in Table 2 , along with obsolete names of valid end-members. All of them except euclase and väyrynenite (which do not belong to the gadolinite supergroup) are therefore not valid and should...
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Includes: Supplemental Content
Journal Article

Beryllium mineral evolution

Edward S. Grew, Robert M. Hazen
Published: 01 May 2014
American Mineralogist (2014) 99 (5-6): 999–1021.
DOI: https://doi.org/10.2138/am.2014.4675
...Figure 4 Photographs of minerals from the Himalaya orogenic belt, Gilgit District, northern Pakistan. ( a ) Väyrynenite from the Shengus pegmatite, Nanga Parbat-Haramosh massif. Age is estimated to be 5 Ma ( Laurs et al. 1998 ). Photograph of sample R050590 reproduced with permission from...
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Journal Article

Coexisting hydroxyl groups and H 2 O molecules in minerals: A single-crystal neutron diffraction study of eosphorite, MnAlPO 4 (OH) 2 ·H 2 O

G. Diego Gatta, Gwilherm Nénert, Pietro Vignola
Published: 01 July 2013
American Mineralogist (2013) 98 (7): 1297–1301.
DOI: https://doi.org/10.2138/am.2013.4438
..., eosphorite, and väyrynenite. The pegmatitic field is hosted by metamorphic rocks belonging to the Nanga Parbat-Haramosh Massif ( Searle 1991 ). Figure 1 ( top ) The crystal structure of eosphorite viewed down [100], based on the neutron structure refinement of this study at 20 K. Thermal ellipsoid...
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Recent Advances in Understanding the Similarities and Differences of Colombian Euclases

Isabella Pignatelli, Gaston Giuliani, Christophe Morlot, Olivier Rouer, Nicolas Claiser, Pierre-Yves Chatagnier, David Goubert
Published: 01 July 2017
The Canadian Mineralogist (2017) 55 (4): 799–820.
DOI: https://doi.org/10.3749/canmin.1700011
...) The emerald mines of Colombia . Mineralogical Record 47 , 5 – 68 . Mrose, M.E. & Appleman, D.E. (1962) The crystal structure and crystal chemistry of väyrynenite (Mn,Fe)Be(PO) 4 (OH...
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Journal Article

CRYSTAL CHEMISTRY OF SYNTHETIC M 2+ Be 2 P 2 O 8 ( M 2+ = Ca, Sr, Pb, Ba) BERYLLOPHOSPHATES

Fabrice Dal Bo, Frédéric Hatert, Maxime Baijot
Published: 01 April 2014
The Canadian Mineralogist (2014) 52 (2): 337–350.
DOI: https://doi.org/10.3749/canmin.52.2.337
... crystallize in many structure types, characterized by different polymerization degrees of the BeO 4 -PO 4 tetrahedra; these compounds form chain structures [fransoletite Ca 3 Be 2 (PO 4 ) 2 (PO 3 OH) 2 ·4H 2 O, väyrynenite, MnBe(PO 4 )(OH)], sheet structures [herderite, CaBe(PO 4 )(F,OH), uralolite, Ca 2...
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Journal Article

Phenakite and bertrandite: products of post-magmatic alteration of beryl in granitic pegmatites (Tatric Superunit, Western Carpathians, Slovakia)

Pavel Uher, Daniel Ozdín, Peter Bačík, Martin Števko, Martin Ondrejka, Olena Rybnikova, Štěpán Chládek, Jana Fridrichová, Jaroslav Pršek, Ľubica Puškelová
Published: 18 August 2022
Mineralogical Magazine (2022) 86 (5): 715–729.
DOI: https://doi.org/10.1180/mgm.2022.99
.... These are Be silicate minerals and typically comprise: secondary beryl; bavenite; bohseite; bertrandite; bityite; danalite; euclase; epididymite; eudidymite; helvine; milarite; and phenakite, or Be phosphate phases: beryllonite; hurlbutite; hydroxylherderite; moraesite; väyrynenite; and others (Lahti and Saikkonen...
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Book Chapter

GEM-BEARING PEGMATITES

Author(s)
William B. ‘Skip’ Simmons
Book: Geology of Gem Deposits Second Edition
Series: Short Courses
Publisher: Mineralogical Association of Canada
Published: 01 January 2014
DOI: 10.3749/9780921294696.ch09
EISBN: 978-0-921294-69-6
... Simpsonite y, o simpsonite VR LCT Stibiotantalite y cervantite group VR LCT Triplite r, br, p triplite R NYF Triphylite b–g triphylite-lithiophilite series R LCT Väyrynenite p, r herderite group VR LCT Zektzerite c, w zektzerite VR NYF Gems from Reactions Zones...
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