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 % P2 O5
Hydrogen 0.43 % H 3.83 % H2 O
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)0.75 F0.25
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 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
X Ray Diffraction:
By Intensity(I/Io ): 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:
PEVayrynenite = 8.90 barns/electronU=PEVayrynenite x r Electron 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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