Wicksite Mineral Data

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General Wicksite Information

Chemical Formula:

NaCa2(Fe++,Mn++)4MgFe+++(PO4)6•2(H2O)

Composition:

Molecular Weight = 1,011.64 gm

Sodium 2.27 % Na 3.06 % Na₂O

Calcium 7.92 % Ca 11.09 % CaO

Magnesium 2.40 % Mg 3.98 % MgO

Manganese 5.43 % Mn 7.01 % MnO

Iron 22.08 % Fe 21.31 % FeO / 7.89 % Fe₂O₃

Phosphorus 18.37 % P 42.09 % P₂O₅

Hydrogen 0.40 % H 3.56 % H₂O

Oxygen 41.12 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaCa₂4(Fe²⁺_0.75)4(Mn²⁺_0.25)MgFe³⁺(PO₄)₆•2(H₂O)

Environment:

Nodules in shale beds in an iron formation.

IMA Status:

Approved IMA 1981

Locality:

Big Bend, on the Big Fish River, Big Fish River-Blow River area, Yukon Territory, Canada. Link to MinDat.org Location Data.

Name Origin:

Named for Frederick John Wicks (1937- ), Curator of Mineralogy, Royal Ontario Museum, Toronto, Canada.

Name Pronunciation:

Wicksite

Synonym:

ICSD 76610

IMA1979-019

PDF 35-512

Wicksite Image

Images:

Wicksite Wolfeite

Comments: Cleaved nodule of fine-grained aggregate of wicksite and wolfeite.
Location: Big Fish River, Yukon, Canada. Scale: 3 x 1.5 cm.
© Dave Barthelmy

Wicksite Crystallography

Axial Ratios:

a:b:c =1.0307:1:0.9299

Cell Dimensions:

a = 12.896, b = 12.511, c = 11.634, Z = 4; V = 1,877.05 Den(Calc)= 3.58

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: P bca

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

By Intensity(I/I_o): 2.753(1), 2.91(0.8), 3.015(0.8),

Crystal Structure:

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Cooper M A , Hawthorne F C , The Canadian Mineralogist , 35 (1997) p.777-784, The crystal structure of wicksite

Physical Properties of Wicksite

Cleavage:

{010} Good

Color:

Bluish black, Dark blue, Black.

Density:

3.54

Hardness:

4.5-5 - Near Apatite

Luster:

Sub Metallic

Streak:

green

Optical Properties of Wicksite

Gladstone-Dale:

CI meas= 0.008 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.019 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.201,KPDmeas= 0.2033,KC= 0.2049
Ncalc = 1.73

Optical Data:

Biaxial (+), a=1.713, b=1.718, g=1.728, bire=0.0150, 2V(Calc)=72, 2V(Meas)=66.

Calculated Properties of Wicksite

Electron Density:

Bulk Density (Electron Density)=3.46 gm/cc
note: Specific Gravity of Wicksite =3.54 gm/cc.

Fermion Index:

Fermion Index = 0.0073888403
Boson Index = 0.9926111597

Photoelectric:

PE_Wicksite= 9.92 barns/electron
U=PE_Wicksite x rElectron Density= 34.30 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Wicksite is Not Radioactive

Wicksite Classification

Dana Class:

40.02.10.01 (40)Hydrated Phosphates, etc

(40.02)where A++ (B++)2 (XO4) · x(H2O)

(40.02.10)Dana Group

40.02.10.01 Wicksite NaCa2(Fe,Mn)4MgFe(PO4)6•2(H2O) P bca 2/m 2/m 2/m

40.02.10.02 Bederite! ([],Na)Ca2(Mn,Mg,Fe)2(Fe,Mg,Al)2Mn2(PO4)6•2(H2O) Pcab 2/m 2/m 2/m

40.02.10.03 Tassieite! (Na,[])Ca2(Mg,Fe,Fe)2(Fe,Mg)2(Fe,Mg)2(PO4)6(H2O)2 P bca 2/m 2/m 2/m

Strunz Class:

08.CF.05 08 - PHOSPHATES, ARSENATES, VANADATES

08.C - Phosphates without Additional Anions, with H2O

08.CF -With large and medium-sized cations, RO4:H2O > 1:1

08.CF.05 Grischunite NaCa2Mn5Fe(AsO4)6•2(H2O) Pcab 2/m 2/m 2/m

08.CF.05 Wicksite NaCa2(Fe,Mn)4MgFe(PO4)6•2(H2O) P bca 2/m 2/m 2/m

08.CF.05 Bederite! ([],Na)Ca2(Mn,Mg,Fe)2(Fe,Mg,Al)2Mn2(PO4)6•2(H2O) Pcab 2/m 2/m 2/m

08.CF.05 Tassieite! (Na,[])Ca2(Mg,Fe,Fe)2(Fe,Mg)2(Fe,Mg)2(PO4)6(H2O)2 P bca 2/m 2/m 2/m

Other Wicksite Information

References:

NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Wicksite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Print or Cut-and-Paste your Wicksite Specimen Label here :

Wicksite

NaCa2(Fe++,Mn++)4MgFe+++(PO4)6•2(H2O)
Dana No: 40.02.10.01 Strunz No: 08.CF.05
Locality:

Notes: