Mineralogy Database

IMA2008-066 Mineral Data

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General IMA2008-066 Information

Help on Chemical  Formula: Chemical Formula: Mn5(H2O)4(AsO3OH)2(AsO4)2
Help on Composition: Composition: Molecular Weight = 904.44 gm
   Manganese  30.37 %  Mn   39.22 % MnO
   Arsenic    33.13 %  As   50.82 % As2O5
   Hydrogen    1.11 %  H     9.96 % H2O
   Oxygen     35.38 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+5(H2O)4(AsO3OH)2(AsO4)2
Help on Environment: Environment: Mn analogue of sainfeldite
Help on IMA Status: IMA Status: Proposed IMA 2009 (Dana # Added)
Help on Locality: Locality: Ojuela mine, Mapimi, Durango, Mexico Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Commission on New Minerals, Nomenclature and Classification (CNMNC)

IMA2008-066 Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.9446:1:1.0543
Help on Cell Dimensions: Cell Dimensions: a = 18.03, b = 9.2715, c = 9.7756, Z = 4; beta = 96.266° V = 1,624.38 Den(Calc)= 3.70
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.234(1), 3.074(0.68), 2.973(0.39),3.357(0.33), 8.279(0.28), 1.68(0.26), 2.341(0.21), 2.676(0.21),

Optical Properties of IMA2008-066

Help on Optical Data: Optical Data: NCalc= 1.72 - from Gladstone-Dale relationship (KC = 0.1935) where Ncalc=Dcalc*KC+1

Calculated Properties of IMA2008-066

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.49 gm/cc
note: Specific Gravity of IMA2008-066 =3.70 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0001714934
Boson Index = 0.9998285066
Help on Photoelectric: Photoelectric: PEIMA2008-066 = 30.69 barns/electron
U=PEIMA2008-066 x rElectron Density= 107.21 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
IMA2008-066 is Not Radioactive

IMA2008-066 Classification

Help on  Dana Class: Dana Class: (39)Hydrated Acid Phosphates, etc
  (39.02)H2 (AB)5 (XO4)4 � x(H2O)
  (39.02.01)Hureaulite Group Hureaulite Mn5(PO3OH)2(PO4)2•4(H2O) C 2/c 2/m Sainfeldite Ca5(AsO3OH)2(AsO4)2•4(H2O) C 2/c 2/m Villyaellenite Mn5(AsO3OH)2(AsO4)2•4(H2O) C 2/c 2/m IMA2008-047! Cd3Zn2(AsO3OH)2(AsO4)24?H2O C 2/c 2/m IMA2008-066! Mn5(H2O)4(AsO3OH)2(AsO4)2 C 2/c 2/m
Help on  Strunz Class: Strunz Class: 08.CB.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.C - Phosphates without Additional Anions, with H2O
  08.CB -With only medium-sized cations, RO4:H2O = 1:1
08.CB.10 Hureaulite Mn5(PO3OH)2(PO4)2•4(H2O) C 2/c 2/m
08.CB.10 Sainfeldite Ca5(AsO3OH)2(AsO4)2•4(H2O) C 2/c 2/m
08.CB.10 IMA2008-066! Mn5(H2O)4(AsO3OH)2(AsO4)2 C 2/c 2/m
08.CB.10 Villyaellenite Mn5(AsO3OH)2(AsO4)2•4(H2O) C 2/c 2/m
08.CB.10 IMA2008-047! Cd3Zn2(AsO3OH)2(AsO4)24?H2O C 2/c 2/m

Other IMA2008-066 Information

Help on See Also: See Also: Links to other databases for IMA2008-066 :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - Mineralienatlas (Deutsch)
7 - Online Mineral Museum
8 - Ruff.Info

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Dana No: Strunz No: 08.CB.10





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