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

Images:

Vayrynenite

Comments: Pink, massive väyrynenite.
Location: Viitaniemi pegmatite, Eräjärvi area, Orivesi, Etelä-Suomen Lääni, Finland. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

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 - Prismatic H-M Symbol (2/m) Space Group: P 2₁/a

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.45(1), 2.89(0.85), 7.25(0.85),

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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Vayrynenite

MnBe(PO4)(OH,F)
Dana No: 41.05.04.03 Strunz No: 08.BA.05
Locality:

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