IMA2004-021 Mineral Data

IMA2004-021 Mineral Data

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General IMA2004-021 Information

Chemical Formula:

Co3(PO4)2·8(H2O)

Composition:

Molecular Weight = 510.86 gm

Cobalt 34.61 % Co 44.00 % CoO

Phosphorus 12.13 % P 27.79 % P₂O₅

Hydrogen 3.16 % H 28.21 % H₂O

Oxygen 50.11 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Co₃(PO₄)₂·8(H₂O)

Environment:

Vivianite group

IMA Status:

Proposed IMA 2004 (Dana # Added)

Locality:

Kovdor massif, Kola Peninsula, Russia Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals and Mineral Names (CNMMN)

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IMA2004-021 Crystallography

Axial Ratios:

a:b:c =0.7521:1:0.35

Cell Dimensions:

a = 10.034, b = 13.341, c = 4.67, Z = 2; beta = 105.02° V = 603.79 Den(Calc)= 2.81

Crystal System:

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

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

By Intensity(I/I_o): 6.67(1), 2.691(0.7), 2.948(0.7),3.195(0.7), 2.408(0.6), 2.521(0.6), 3.84(0.4), 4.85(0.4),

Optical Properties of IMA2004-021

Optical Data:

NCalc= 1.63 - from Gladstone-Dale relationship (KC = 0.2255) where Ncalc=Dcalc*KC+1

Calculated Properties of IMA2004-021

Electron Density:

r_electron=2.81 gm/cc
note: r_IMA2004-021=2.81 gm/cc.

Fermion Index

Fermion Index = 0.00024
Boson Index = 0.99976

Photoelectric:

PE_IMA2004-021= 12.02 barns/electron
U=PE_IMA2004-021 x r_electron= 33.72 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

IMA2004-021 is Not Radioactive

IMA2004-021 Classification

Dana Class:

40.3.6.9 (40)Hydrated Phosphates, etc

(40.3)where (A++)3 (XO4)2 · x(H2O)

(40.3.6)Dana Group

40.3.6.1 Vivianite Fe3(PO4)2·8(H2O) C 2/m 2/m

40.3.6.2 Baricite (Mg,Fe)3(PO4)2·8(H2O) C 2/m 2/m

40.3.6.3 Erythrite Co3(AsO4)2·8(H2O) I2/m 2/m

40.3.6.4 Annabergite Ni3(AsO4)2·8(H2O) I2/m 2/m

40.3.6.5 Kottigite Zn3(AsO4)2·8(H2O) C 2/m 2/m

40.3.6.6 Parasymplesite Fe3(AsO4)2·8(H2O) C 2/m 2/m

40.3.6.7 Hornesite Mg3(AsO4)2·8(H2O) I2/m 2/m

40.3.6.8 Arupite (Ni,Fe)3(PO4)2·8(H2O) I2/m 2/m

40.3.6.9 IMA2004-021 ! Co3(PO4)2·8(H2O) C 2/m 2/m

Strunz Class:

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

VII/X - Unclassified Strunz Phosphates, Arsenates and Vanadates

VII/X.00 - Vivianite group

Other IMA2004-021 Information

See Also:

Links to other databases for IMA2004-021 :
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 IMA2004-021 Specimen Label here :

IMA2004-021

Co3(PO4)2·8(H2O)
Dana No: 40.3.6.9 Strunz No: VII/X.00-00
Locality:

Notes: