Viitaniemiite Mineral Data

General Viitaniemiite Information

Chemical Formula:

Na(Ca,Mn++)Al(PO4)(F,OH)3

Composition:

Molecular Weight = 241.11 gm

Sodium 9.53 % Na 12.85 % Na₂O

Calcium 14.96 % Ca 20.93 % CaO

Manganese 2.28 % Mn 2.94 % MnO

Aluminum 11.19 % Al 21.14 % Al₂O₃

Phosphorus 12.85 % P 29.44 % P₂O₅

Hydrogen 0.50 % H 4.48 % H₂O

Oxygen 34.51 % O

Fluorine 14.18 % F 14.18 % F

- % F -5.97 % -O=F₂

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaCa_0.9Mn²⁺_0.1Al(PO₄)F_1.8(OH)_1.2

Environment:

In cavities of a silicocarbonate sill found as inclusions in esosphorite.

IMA Status:

Approved IMA 1981

Locality:

Viitaniemi granite pegmatite, Erajarvi, Orivesi, Finland. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Viitaniemiite + Pronunciation

Synonym:

ICSD 40096

PDF 33-1226

Viitaniemiite Image

Images:

Viitaniemiite Roscherite

Comments: Colorless to pink viitaniemiite with brownish roscherite.
Location: Greifenstein Rocks, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Viitaniemiite Crystallography

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

By Intensity(I/I_o): 2.883(1), 2.937(0.5), 3.223(0.46),

Physical Properties of Viitaniemiite

Color:

Colorless, Gray, Gray white, White.

Optical Properties of Viitaniemiite

Gladstone-Dale:

CI meas= 0.076 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.087 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1769,KPDmeas= 0.179,KC= 0.1937
Ncalc = 1.59 - 1.63

Calculated Properties of Viitaniemiite

Electron Density:

Bulk Density (Electron Density)=3.10 gm/cc
note: Specific Gravity of Viitaniemiite =3.15 gm/cc.

Fermion Index:

Fermion Index = 0.000368337
Boson Index = 0.999631663

Photoelectric:

PE_{Viitaniemiite}= 3.60 barns/electron
U=PE_{Viitaniemiite} x rElectron Density= 11.17 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Viitaniemiite is Not Radioactive

Viitaniemiite Classification

Dana Class:

41.03.05.01 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen

(41.03)where (A B)3 (XO4) Zq

(41.03.05)Dana Group

41.03.05.01 Viitaniemiite Na(Ca,Mn)Al(PO4)(F,OH)3 P 2₁,P 2₁/m Mono

Strunz Class:

08.BL.15 08 - PHOSPHATES, ARSENATES, VANADATES

08.B - Phosphates, etc. with Additional Anions, without H2O

08.BL -With medium-sized and large cations, (OH, etc.):RO4 = 3:1

08.BL.15 Viitaniemiite Na(Ca,Mn)Al(PO4)(F,OH)3 P 2₁,P 2₁/m Mono

Other Viitaniemiite Information

See Also:

Links to other databases for Viitaniemiite :
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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Print or Cut-and-Paste your Viitaniemiite Specimen Label here :

Viitaniemiite

Na(Ca,Mn++)Al(PO4)(F,OH)3
Dana No: 41.03.05.01 Strunz No: 08.BL.15
Locality:

Notes: