Wheatleyite Mineral Data
General Wheatleyite Information
Chemical Formula:
Na2Cu(C2O4)2•2(H2O)
Composition:
Molecular Weight = 321.60 gm
Sodium 14.30 % Na 19.27 % Na2 O
Copper 19.76 % Cu 24.73 % CuO
Hydrogen 1.25 % H 11.20 % H2 O
Carbon 14.94 % C 44.79 % C2 O3
Oxygen 49.75 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
Na2 Cu(C2 O4 )2 •2(H2 O)
Environment:
Found on a specimen found on the mine dumps of a Pb-Zn vein deposit.
IMA Status:
Approved IMA 1986
Locality:
Wheatley mine, near Phoenixville, Chester Co., Pennsylvania, USA. Link to MinDat.org Location Data.
Name Origin:
Named for the localiity.
Name Pronunciation:
Wheatleyite + Pronunciation
Synonym:
ICSD 40090
PDF 39-1500
Wheatleyite Crystallography
Axial Ratios:
a:b:c =0.7821:1:0.3713
Cell Dimensions:
a = 7.559, b = 9.665, c = 3.589, Z = 1; alpha = 76.65°, beta = 103.67°, gamma = 109.1° V = 234.25 Den(Calc)= 2.28
Crystal System:
Triclinic - Pinacoidal H-M Symbol ( 1 ) Space Group: P1
X Ray Diffraction:
By Intensity(I/Io ): 6.539(1), 3.169(0.9), 7.04(0.8),
Physical Properties of Wheatleyite
Cleavage:
{100} Perfect
Color:
Blue.
Density:
2.27
Diaphaneity:
Transparent
Hardness:
1-2 - Between Talc and Gypsum
Luster:
Vitreous (Glassy)
Streak:
light blue
Optical Properties of Wheatleyite
Gladstone-Dale:
CI meas = -0.969 (Poor) - where the CI = (1-KPDmeas /KC ) CI calc = -0.987 (Poor) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.232,KPDmeas = 0.23,KC = 0.1168 Ncalc = 1.26 - 1.27
Optical Data:
Biaxial (+), a=1.4, b=1.499, g=1.667, bire=0.2670, 2V(Calc)=84, 2V(Meas)=83.
Calculated Properties of Wheatleyite
Electron Density:
Bulk Density (Electron Density)=2.24 gm/cc note: Specific Gravity of Wheatleyite =2.27 gm/cc.
Fermion Index:
Fermion Index = 0.0018840011 Boson Index = 0.9981159989
Photoelectric:
PEWheatleyite = 8.83 barns/electronU=PEWheatleyite x r Electron Density= 19.82 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Wheatleyite is Not Radioactive
Wheatleyite Classification
Dana Class:
50.01.08.01 (50) Salts of Organic Acids
(50.01) (Oxalates)
(50.01.08) Dana Group
50.01.08.01 Wheatleyite Na2Cu(C2O4)2•2(H2O) P1 1
Strunz Class:
10.AB.30 10 - ORGANIC COMPOUNDS
10.A - Salts of Organic Acids
10.AB -Oxalates
10.AB.30 Wheatleyite Na2Cu(C2O4)2•2(H2O) P1 1
Other Wheatleyite Information
References:
NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
See Also:
Links to other databases for Wheatleyite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
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Print or Cut-and-Paste your Wheatleyite Specimen Label here :
Wheatleyite
Na2Cu(C2O4)2•2(H2O)
Dana No: 50.01.08.01 Strunz No: 10.AB.30
Locality:
Notes:
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