IMA2008-066 Mineral Data

General IMA2008-066 Information

Chemical Formula:

Mn5(H2O)4(AsO3OH)2(AsO4)2

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

Empirical Formula:

Mn²⁺₅(H₂O)₄(AsO₃OH)₂(AsO₄)₂

Environment:

Mn analogue of sainfeldite

IMA Status:

Proposed IMA 2009 (Dana # Added)

Locality:

Ojuela mine, Mapimi, Durango, Mexico Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

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IMA2008-066 Crystallography

Axial Ratios:

a:b:c =1.9446:1:1.0543

Cell Dimensions:

a = 18.03, b = 9.2715, c = 9.7756, Z = 4; beta = 96.266° V = 1,624.38 Den(Calc)= 3.70

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c

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

By Intensity(I/I_o): 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

Optical Data:

NCalc= 1.72 - from Gladstone-Dale relationship (KC = 0.1935) where Ncalc=Dcalc*KC+1

Calculated Properties of IMA2008-066

Electron Density:

Bulk Density (Electron Density)=3.49 gm/cc
note: Specific Gravity of IMA2008-066 =3.70 gm/cc.

Fermion Index:

Fermion Index = 0.0001714934
Boson Index = 0.9998285066

Photoelectric:

PE_IMA2008-066= 30.69 barns/electron
U=PE_IMA2008-066 x rElectron Density= 107.21 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
IMA2008-066 is Not Radioactive

IMA2008-066 Classification

Dana Class:

39.02.01.05 (39)Hydrated Acid Phosphates, etc

(39.02)H2 (AB)5 (XO4)4 · x(H2O)

(39.02.01)Hureaulite Group

39.02.01.01 Hureaulite Mn5(PO3OH)2(PO4)2•4(H2O) C 2/c 2/m

39.02.01.02 Sainfeldite Ca5(AsO3OH)2(AsO4)2•4(H2O) C 2/c 2/m

39.02.01.03 Villyaellenite Mn5(AsO3OH)2(AsO4)2•4(H2O) C 2/c 2/m

39.02.01.04 IMA2008-047! Cd3Zn2(AsO3OH)2(AsO4)24?H2O C 2/c 2/m

39.02.01.05 IMA2008-066! Mn5(H2O)4(AsO3OH)2(AsO4)2 C 2/c 2/m

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

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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Print or Cut-and-Paste your IMA2008-066 Specimen Label here :

IMA2008-066

Mn5(H2O)4(AsO3OH)2(AsO4)2
Dana No: 39.02.01.05 Strunz No: 08.CB.10
Locality:

Notes: