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Wheatleyite

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Wheatley Mines, Phoenixville Mining District, Schuylkill Township, Chester Co., Pennsylvania, USA
© Brent Thorne




Formula:
Na
 
2
Cu(C
 
2
O
 
4
)
 
2
 · 2H
 
2
O
System:TriclinicColour:Light blue
Hardness:1 - 2
Name:Named after its discovery locality, the Wheatley Mines, Phoenixville, Pennsylvania, USA.
This page provides mineralogical data about Wheatleyite.

Classification of Wheatleyite

IMA status:Approved 1984
Strunz 8th edition ID:9/A.01-100
Nickel-Strunz 10th (pending) edition ID:10.AB.30

10 : ORGANIC COMPOUNDS
A : Salts of organic acids
B : Oxalates
Dana 8th edition ID:50.1.8.1

50 : ORGANIC COMPOUNDS
1 : Oxalates
Hey's CIM Ref.:31.1.3

31 : Oxalates, Citrates, Mellitates and Acetates
1 : Oxalates
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Type Occurrence of Wheatleyite

Type Locality:Wheatley Mines, Phoenixville Mining District, Schuylkill Township, Chester Co., Pennsylvania, USA
Year of Discovery:1986

Physical Properties of Wheatleyite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Light blue
Hardness (Mohs):1 - 2

Crystallography of Wheatleyite

Crystal System:Triclinic
Cell Parameters:a = 7.54Å, b = 9.48Å, c = 3.58Å
α = 81.9°, β = 103.67°, γ = 107.94°
Ratio:a:b:c = 0.795 : 1 : 0.378
Unit Cell Volume:V 235.91 ų (Calculated from Unit Cell)

Optical Data of Wheatleyite

Type:Biaxial (+)
RI values: nα = 1.400 nβ = 1.499 nγ = 1.667
2V:Measured: 83° , Calculated: 84°
Maximum Birefringence:δ = 0.267

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:none

Chemical Properties of Wheatleyite

Formula:
Na
 
2
Cu(C
 
2
O
 
4
)
 
2
 · 2H
 
2
O
Essential elements:C, Cu, H, Na, O
All elements listed in formula:C, Cu, H, Na, O

Relationship of Wheatleyite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
10.AB.05Humboldtine
Fe
2+
 
(C
 
2
O
 
4
) · 2H
 
2
O
10.AB.05Lindbergite
Mn
2+
 
(C
 
2
O
 
4
) · 2H
 
2
O
10.AB.10Glushinskite
Mg(C
 
2
O
 
4
) · 2H
 
2
O
10.AB.15Moolooite
Cu(C
 
2
O
 
4
) · 0.4H
 
2
O
10.AB.20Stepanovite
NaMgFe
3+
 
(C
 
2
O
 
4
)
 
3
 · 8-9H
 
2
O
10.AB.25Minguzzite
K
 
3
Fe
3+
 
(C
 
2
O
 
4
)
 
3
 · 3H
 
2
O
10.AB.35Zhemchuzhnikovite
NaMg(Fe
3+
 
,Al)(C
 
2
O
 
4
)
 
3
 · 8H
 
2
O
10.AB.40Weddellite
Ca(C
 
2
O
 
4
) · 2H
 
2
O
10.AB.45Whewellite
Ca(C
 
2
O
 
4
) · H
 
2
O
10.AB.50Caoxite
Ca(C
 
2
O
 
4
) · 3H
 
2
O
10.AB.55Oxammite
(NH
 
4
)
 
2
(C
 
2
O
 
4
) · H
 
2
O
10.AB.60Natroxalate
Na
 
2
(C
 
2
O
 
4
)
10.AB.65Coskrenite-(Ce)
(Ce,Nd,La)
 
2
(C
 
2
O
 
4
)(SO
 
4
)
 
2
 · 12H
 
2
O
10.AB.70Levinsonite-(Y)
(Y,Nd,La)Al(C
 
2
O
 
4
)(SO
 
4
)
 
2
 · 12H
 
2
O
10.AB.75Zugshunstite-(Ce)
(Ce,Nd,La)Al(C
 
2
O
 
4
)(SO
 
4
)
 
2
 · 12H
 
2
O
10.AB.80Novgorodovaite
Ca
 
2
(C
 
2
O
 
4
)Cl
 
2
 · 2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
31.1.1Oxammite
(NH
 
4
)
 
2
(C
 
2
O
 
4
) · H
 
2
O
31.1.2Moolooite
Cu(C
 
2
O
 
4
) · 0.4H
 
2
O
31.1.4Glushinskite
Mg(C
 
2
O
 
4
) · 2H
 
2
O
31.1.5Whewellite
Ca(C
 
2
O
 
4
) · H
 
2
O
31.1.6Weddellite
Ca(C
 
2
O
 
4
) · 2H
 
2
O
31.1.7Humboldtine
Fe
2+
 
(C
 
2
O
 
4
) · 2H
 
2
O
31.1.8Stepanovite
NaMgFe
3+
 
(C
 
2
O
 
4
)
 
3
 · 8-9H
 
2
O
31.1.9Zhemchuzhnikovite
NaMg(Fe
3+
 
,Al)(C
 
2
O
 
4
)
 
3
 · 8H
 
2
O
31.1.10Minguzzite
K
 
3
Fe
3+
 
(C
 
2
O
 
4
)
 
3
 · 3H
 
2
O

Other Names for Wheatleyite

Synonyms:
IMA1984-040
Other Languages:
German:Wheatleyit
Spanish:Wheatleyita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Wheatleyite

Reference List:

- +
American Mineralogist (1986): 71: 1240-1242.

Acta Crystallographica: B36: 2145-2147.

Internet Links for Wheatleyite

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  • Wheatleyite details from Handbook of Mineralogy (PDF)
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    • Localities for Wheatleyite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    USA
     
    • Pennsylvania
      • Chester Co.
        • Schuylkill Township
    		MinRec 20:369-386
    Rouse, et al (1986); Am.Min.: 71 (1986): 1240; Acta Cryst.: B36 (1980): 2145.
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