Vayrynenite Mineral Data

General Vayrynenite Information

Chemical Formula: MnBe(PO4)(OH,F) Composition: Molecular Weight = 176.43 gm    Manganese   31.14 %  Mn   40.21 % MnO    Beryllium    5.11 %  Be   14.18 % BeO    Phosphorus  17.56 %  P    40.23 % P₂O₅    Hydrogen     0.43 %  H     3.83 % H₂O    Oxygen      43.08 %  O    Fluorine     2.69 %  F     2.69 % F                  -   %   F    -1.13 % -O=F₂                   ______        ______                100.00 %      100.00 % = TOTAL OXIDE Empirical Formula: Mn²⁺Be(PO₄)(OH)_0.75F_0.25 Environment: Found in a pegmatite. IMA Status: Valid Species (Pre-IMA) 1954 Locality: Viitaniemi, Erajarvi, Finland. Link to MinDat.org Location Data. Name Origin: Named for Heikki Allan Vayrynen (1888-1956), mineralogist and geologist, Technical High School, Helsinki, Finland. Name Pronunciation: Vayrynenite + Pronunciation  

Vayrynenite Image

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Vayrynenite Crystallography

Axial Ratios: a:b:c =0.3734:1:0.3264 Cell Dimensions: a = 5.411, b = 14.49, c = 4.73, Z = 4; beta = 102.75° V = 361.71 Den(Calc)= 3.24 Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/a X Ray Diffraction: By Intensity(I/I_o): 3.45(1), 2.89(0.85), 7.25(0.85), Crystal Structure:

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Huminicki D M C , Hawthorne F C , The Canadian Mineralogist , 38 (2000) p.1425-1432, Refinement of the crystal structure of vayrynenite View Additional jPOWD Structure files for Vayrynenite [1]

 

Physical Properties of Vayrynenite

Cleavage: {001} Good Color: Pink, Rose red. Density: 3.183 - 3.215, Average = 3.19 Diaphaneity: Transparent Hardness: 5 - Apatite Luster: Vitreous (Glassy)  

Optical Properties of Vayrynenite

Gladstone-Dale: CI meas= -0.018 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2021,KPDmeas= 0.2047,KC= 0.2011
Ncalc = 1.64 - 1.65 Optical Data: Biaxial (-), a=1.638-1.64, b=1.658-1.662, g=1.664-1.667, bire=0.0260-0.0270, 2V(Calc)=50-56, 2V(Meas)=54.13.  

Calculated Properties of Vayrynenite

Electron Density: Bulk Density (Electron Density)=3.12 gm/cc
note: Specific Gravity of Vayrynenite =3.24 gm/cc.
Fermion Index: Fermion Index = 0.05
Boson Index = 0.95 Photoelectric: PE_Vayrynenite = 8.90 barns/electron
U=PE_Vayrynenite x rElectron Density= 27.79 barns/cc.
Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Vayrynenite is Not Radioactive  

Vayrynenite Classification

Dana Class: 41.05.04.03 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen   (41.05)where (A B)2 (XO4) Zq   (41.05.04)Herderite Group  

41.05.04.01 Herderite CaBe(PO4)F P 2₁/a 2/m

 

41.05.04.02 Hydroxylherderite CaBe(PO4)(OH) P 2₁/a 2/m

 

41.05.04.03 Vayrynenite MnBe(PO4)(OH,F) P 2₁/a 2/m

 

41.05.04.04 Bergslagite CaBe(AsO4)(OH) P 2₁/c 2/m

Strunz Class: 08.BA.05 08 - PHOSPHATES, ARSENATES, VANADATES   08.B - Phosphates, etc. with Additional Anions, without H2O   08.BA -With small and medium-sized cations  

08.BA.05 Vayrynenite MnBe(PO4)(OH,F) P 2₁/a 2/m

 

Other Vayrynenite Information

References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) See Also: Links to other databases for Vayrynenite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST
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