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Dixenite Mineral Data

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General Dixenite Information

Help on Chemical  Formula: Chemical Formula: Cu+Mn++14Fe+++(As+++O3)5(SiO4)2(As+++++O4)(OH)6
Help on Composition: Composition: Molecular Weight = 1,928.25 gm
   Manganese  39.89 %  Mn   51.50 % MnO
   Iron        2.90 %  Fe    4.14 % Fe2O3
   Copper      3.30 %  Cu    3.71 % Cu2O
   Silicon     2.91 %  Si    6.23 % SiO2
   Arsenic    23.31 %  As   25.65 % As2O3 /  5.96 % As2O5
   Hydrogen    0.31 %  H     2.80 % H2O
   Oxygen     27.38 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CuMn2+14Fe3+(AsO3)5(SiO4)2(AsO4)(OH)6
Help on Environment: Environment: In a metamorphosed Fe-Mn orebody in serpentine.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1920
Help on Locality: Locality: Langbanshyttan, Vermland, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek di, for two, and xenos, for stranger, in reference to the then unique association of silica and arsenious oxide in the mineral.
Help on Name Pronunciation: Name Pronunciation: Dixenite Say DIXENITE
Help on Synonym: Synonym: ICSD 30787
  PDF 35-520
 

Dixenite Image

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  Dixenite

Comments: Deep red translucent crystalline grains of dixenite.
Location: Langban, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Dixenite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:4.55362
Help on Cell Dimensions: Cell Dimensions: a = 8.233, c = 37.49, Z = 3; V = 2,200.71 Den(Calc)= 4.36
Help on Crystal System: Crystal System: Trigonal - Pyramidal H-M Symbol (3) Space Group: R 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.927(1), 3.435(0.44), 2.965(0.36),
 

Physical Properties of Dixenite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Bronze, Black.
Help on Density: Density: 4.2
Help on Diaphaneity: Diaphaneity: Translucent to subtranslucent to opaque
Help on Habit: Habit: Foliated - Two dimensional platy forms.
Help on Hardness: Hardness: 3-4 - Calcite-Fluorite
Help on Luster: Luster: Vitreous (Glassy)
 

Optical Properties of Dixenite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.061 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.096 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.195,KPDmeas= 0.2024,KC= 0.2156
Ncalc = 1.91 - 1.94
Help on Optical Data: Optical Data: Uniaxial (-), e=1.73, w=1.97, bire=0.2400.
 

Calculated Properties of Dixenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.93 gm/cc
note: Specific Gravity of Dixenite =4.20 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.002106299
Boson Index = 0.997893701
Help on Photoelectric: Photoelectric: PEDixenite = 29.17 barns/electron
U=PEDixenite x rElectron Density= 114.48 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Dixenite is Not Radioactive
 

Dixenite Classification

Help on  Dana Class: Dana Class: 46.02.08.01 (46)Basic or Halogen-Containing Antimonites, Arsenites and Phosphites
  (46.02)with miscellaneous formulae
  (46.02.08)Dixenite Group
 
46.02.08.01 Dixenite CuMn14Fe(AsO3)5(SiO4)2(AsO4)(OH)6 R 3 3
 
46.02.08.02 Arakiite! (Zn,Mn)(Mn,Mg)12(Fe,Al)2(AsO3)(AsO4)2(OH)23 Cc m
Help on  Strunz Class: Strunz Class: 08.BE.45 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BE -With only medium-sized cations, (OH, etc.):RO4 > 2:1
 
08.BE.45 Dixenite CuMn14Fe(AsO3)5(SiO4)2(AsO4)(OH)6 R 3 3
 
08.BE.45 Hematolite (Mn,Mg,Al)15(AsO3)(AsO4)2(OH)23 R 3 3
 
08.BE.45 Kraisslite (Mn,Mg)24Zn3Fe(AsO3)2(AsO4)3(SiO4)6(OH)18 P 6322 6 2 2
 
08.BE.45 Mcgovernite Mn9Mg4Zn2As2Si2O17(OH)14 R 3c 3 2/m
 
08.BE.45 Turtmannite! (Mn,Mg)25.5[(V,As)O4]3(SiO4)3[AsO3]xO5-5x(OH)20x R 3c 3 2/m
 
08.BE.45 Arakiite! (Zn,Mn)(Mn,Mg)12(Fe,Al)2(AsO3)(AsO4)2(OH)23 Cc m
 

Other Dixenite Information

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Dixenite :
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 Dixenite Specimen Label here :

Dixenite

Cu+Mn++14Fe+++(As+++O3)5(SiO4)2(As+++++O4)(OH)6
Dana No: 46.02.08.01 Strunz No: 08.BE.45
Locality:

 

Notes:

 

 
   
 


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