Mineralogy Database

Magniotriplite Mineral Data

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General Magniotriplite Information

Help on Chemical  Formula: Chemical Formula: (Mg,Fe++,Mn)2(PO4)F
Help on Composition: Composition: Molecular Weight = 187.63 gm
   Magnesium   15.54 %  Mg   25.78 % MgO
   Manganese    5.86 %  Mn    7.56 % MnO
   Iron        17.86 %  Fe   22.97 % FeO
   Phosphorus  16.51 %  P    37.83 % P2O5
   Oxygen      34.11 %  O
   Fluorine    10.13 %  F    10.13 % F
                 -   %   F    -4.26 % -O=F2    
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg1.2Fe2+0.6Mn2+0.2(PO4)F
Help on Environment: Environment: Magniotriplite and wagnerite are polytypes, not polymorphs, of one another. The name wagnerite has priority (1821 vs. 1951 for magniotriplite).
Help on IMA Status: IMA Status: Discredited IMA 2003
Help on Locality: Locality: Tukestan ridge, Kazakhstan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named in 1951 for its relationship to triplite. Magniotriplite discredited 2003
Help on Name Pronunciation: Name Pronunciation: Magniotriplite + Pronunciation Say MAGNIOTRIPLITE
Help on Synonym: Synonym: Discredited
  ICSD 41689
  PDF 42-582

Magniotriplite Image

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Comments: Red-brown crystalline magniotriplite masses in pegmatite.
Location: Kyrk-Bulak pegmatite, Turkestanskij Range, Os, Kyrgyzstan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Magniotriplite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9334:1:0.7564
Help on Cell Dimensions: Cell Dimensions: a = 11.92, b = 12.77, c = 9.66, Z = 16; beta = 107.18° V = 1,404.82 Den(Calc)= 3.55
Help on Crystal System: 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/Io): 2.97(1), 3.14(1), 3.33(1),

Physical Properties of Magniotriplite

Help on Cleavage: Cleavage: {001} Good, {010} Distinct, {100} Indistinct
Help on Color: Color: Reddish brown.
Help on Density: Density: 3.57
Help on Hardness: Hardness: 5-5.5 - Apatite-Knife Blade

Optical Properties of Magniotriplite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.008 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.002 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1832,KPDmeas= 0.1822,KC= 0.1836
Ncalc = 1.65 - 1.66
Help on Optical Data: Optical Data: Biaxial (+), a=1.641, b=1.649, g=1.661, bire=0.0200, 2V(Calc)=80, 2V(Meas)=60.

Calculated Properties of Magniotriplite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.44 gm/cc
note: Specific Gravity of Magniotriplite =3.55 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEMagniotriplite = 8.03 barns/electron
U=PEMagniotriplite x rElectron Density= 27.67 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Magniotriplite is Not Radioactive

Magniotriplite Classification

Help on  Dana Class: Dana Class: (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.06)where (A)2 (XO4) Zq
  (41.06.01)Zwieselite Group Zwieselite (Fe,Mn)2(PO4)F I2/a 2/m Triplite (Mn,Fe,Mg,Ca)2(PO4)(F,OH) I2/m 2/m Magniotriplite? (Mg,Fe,Mn)2(PO4)F P 21/a 2/m
Help on  Strunz Class: Strunz Class: 08.BB.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BB -With only medium-sized cations, (OH, etc.):RO4 � 1:1
08.BB.10 Magniotriplite? (Mg,Fe,Mn)2(PO4)F P 21/a 2/m
08.BB.10 Hydroxylwagnerite! Mg2(PO4)(OH) P 21/c 2/m
08.BB.10 Triplite (Mn,Fe,Mg,Ca)2(PO4)(F,OH) I2/m 2/m
08.BB.10 Zwieselite (Fe,Mn)2(PO4)F I2/a 2/m

Other Magniotriplite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Magniotriplite :
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

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Dana No: Strunz No: 08.BB.10





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