IMA2004-050 Mineral Data

IMA2004-050 Mineral Data

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General IMA2004-050 Information

Chemical Formula:

Fe3(PO4)2(OH)3·5H2O

Composition:

Molecular Weight = 498.58 gm

Iron 33.60 % Fe 48.04 % Fe₂O₃

Phosphorus 12.42 % P 28.47 % P₂O₅

Hydrogen 2.63 % H 23.49 % H₂O

Oxygen 51.34 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Fe³⁺₃(PO₄)₂(OH)₃·5(H₂O)

Environment:

Wavellite group

IMA Status:

Proposed IMA 2004 (Dana # Added)

Locality:

Grube Mark near Essershausen, Taunus, Hesse, Germany. Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals and Mineral Names (CNMMN)

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IMA2004-050 Crystallography

Axial Ratios:

a:b:c =1.3287:1:2.4232

Cell Dimensions:

a = 9.777, b = 7.358, c = 17.83, Z = 4; beta = 92.19° V = 1,281.74 Den(Calc)= 2.58

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/n

Optical Properties of IMA2004-050

Optical Data:

NCalc= 1.73 - from Gladstone-Dale relationship (KC = 0.2833) where Ncalc=Dcalc*KC+1

Calculated Properties of IMA2004-050

Electron Density:

r_electron=2.58 gm/cc
note: r_IMA2004-050=2.58 gm/cc.

Fermion Index

Fermion Index = 0.00737
Boson Index = 0.99263

Photoelectric:

PE_IMA2004-050= 10.47 barns/electron
U=PE_IMA2004-050 x r_electron= 26.97 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

IMA2004-050 is Not Radioactive

IMA2004-050 Classification

Dana Class:

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

(42.10)where (AB)3 (XO4)2 Zq · x(H2O)

(42.10.2)Dana Group

42.10.2.1 Wavellite Al3(PO4)2(OH,F)3·5(H2O) Pcmn 2/m 2/m 2/m

42.10.2.2 IMA2004-050 ! Fe3(PO4)2(OH)3·5H2O P 2₁/n 2/m

Strunz Class:

VII/X.00-00 VII - Phosphates, Arsenates and Vanadates

VII/X - Unclassified Strunz Phosphates, Arsenates and Vanadates

VII/X.00 - Wavellite group

Other IMA2004-050 Information

See Also:

Links to other databases for IMA2004-050 :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch)

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Print or Cut-and-Paste your IMA2004-050 Specimen Label here :

IMA2004-050

Fe3(PO4)2(OH)3·5H2O
Dana No: 42.10.2.2 Strunz No: VII/X.00-00
Locality:

Notes: