IMA2008-056 Mineral Data

General IMA2008-056 Information

Chemical Formula:

NaMn++Fe+++5(PO4)4(OH)6•2H2O

Composition:

Molecular Weight = 875.12 gm

Sodium 2.63 % Na 3.54 % Na₂O

Manganese 6.28 % Mn 8.11 % MnO

Iron 31.91 % Fe 45.62 % Fe₂O₃

Phosphorus 14.16 % P 32.44 % P₂O₅

Hydrogen 1.15 % H 10.29 % H₂O

Oxygen 43.88 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaMn²⁺Fe³⁺₅(PO₄)₄(OH)₆•2(H₂O)

Environment:

Dufrenite group

IMA Status:

Proposed IMA 2009 (Dana # Added)

Locality:

Gigante pegmatite, Punilla Department, Cordoba Province, Argentina Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

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IMA2008-056 Crystallography

Axial Ratios:

a:b:c =5.0177:1:2.6907

Cell Dimensions:

a = 25.975, b = 5.1766, c = 13.929, Z = 4; beta = 111.293° V = 1,745.07 Den(Calc)= 3.33

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): 3.179(1), 3.424(0.71), 5.045(0.6),1.585(0.5), 2.881(0.42), 2.109(0.39), 4.147(0.37), 2.426(0.36),

Optical Properties of IMA2008-056

Optical Data:

NCalc= 1.87 - from Gladstone-Dale relationship (KC = 0.2608) where Ncalc=Dcalc*KC+1

Calculated Properties of IMA2008-056

Electron Density:

Bulk Density (Electron Density)=3.26 gm/cc
note: Specific Gravity of IMA2008-056 =3.33 gm/cc.

Fermion Index:

Fermion Index = 0.0069768569
Boson Index = 0.9930231431

Photoelectric:

PE_IMA2008-056= 11.84 barns/electron
U=PE_IMA2008-056 x rElectron Density= 38.56 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
IMA2008-056 is Not Radioactive

IMA2008-056 Classification

Dana Class:

42.09.01.04 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.09)where (A)3 (XO4)2 Zq · x(H2O)

(42.09.01)Burangaite Group

42.09.01.01 Burangaite (Na,Ca)2(Fe,Mg)2Al10(PO4)8(OH,O)12•4(H2O) C 2/c 2/m

42.09.01.02 Dufrenite FeFe4(PO4)3(OH)5•2(H2O) C 2/c 2/m

42.09.01.03 Natrodufrenite Na(Fe,Fe)(Fe,Al)5(PO4)4(OH)6•2(H2O) C 2/c 2/m

42.09.01.04 IMA2008-056! NaMnFe5(PO4)4(OH)6•2H2O C 2/c 2/m

42.09.01.05 Matioliite! NaMgAl5(PO4)4(OH)6•2H2O C 2/c 2/m

Strunz Class:

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

08.D - Phosphates, etc

08.DK -With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1

08.DK.15 Dufrenite FeFe4(PO4)3(OH)5•2(H2O) C 2/c 2/m

08.DK.15 Burangaite (Na,Ca)2(Fe,Mg)2Al10(PO4)8(OH,O)12•4(H2O) C 2/c 2/m

08.DK.15 Natrodufrenite Na(Fe,Fe)(Fe,Al)5(PO4)4(OH)6•2(H2O) C 2/c 2/m

08.DK.15 Matioliite! NaMgAl5(PO4)4(OH)6•2H2O C 2/c 2/m

08.DK.15 IMA2008-056! NaMnFe5(PO4)4(OH)6•2H2O C 2/c 2/m

Other IMA2008-056 Information

See Also:

Links to other databases for IMA2008-056 :
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 IMA2008-056 Specimen Label here :

IMA2008-056

NaMn++Fe+++5(PO4)4(OH)6•2H2O
Dana No: 42.09.01.04 Strunz No: 08.DK.15
Locality:

Notes: