Poitevinite Mineral Data

General Poitevinite Information

Chemical Formula:

(Cu,Fe++,Zn)SO4•(H2O)

Composition:

Molecular Weight = 175.50 gm

Zinc 3.73 % Zn 4.64 % ZnO

Iron 9.55 % Fe 12.28 % FeO

Copper 21.73 % Cu 27.20 % CuO

Hydrogen 1.15 % H 10.27 % H₂O

Sulfur 18.27 % S 45.62 % SO₃

Oxygen 45.58 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Cu_0.6Fe²⁺_0.3Zn_0.1(SO₄)•(H₂O)

IMA Status:

Approved IMA 1964

Locality:

Hat Creek, Bonaparte River, Lillooet, British Columbia, Canada. Link to MinDat.org Location Data.

Name Origin:

Named for Theophile Eugene Poitevin (1888-1978), Canadian mineralogist, Geological Survey of Canada.

Name Pronunciation:

Poitevinite + Pronunciation

Synonym:

ICSD 79163

PDF 15-120

Poitevinite Image

Images:

Poitevinite

Comments: Pale brown powdery poitevinite mass with pale blue chalcanthite.
Location: Bonaparte River, Kamloops District, British Columbia, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Poitevinite Crystallography

Axial Ratios:

a:b:c =0.9922:1:1.4602

Cell Dimensions:

a = 5.12, b = 5.16, c = 7.535, Z = 2; alpha = 107.06°, beta = 107.4°, gamma = 92.73° V = 181.39 Den(Calc)= 3.21

Crystal System:

Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 3.46(1), 3.08(0.5), 4.72(0.5),

Physical Properties of Poitevinite

Cleavage:

None

Color:

Pink, Light red.

Density:

3.3

Diaphaneity:

Transparent to Translucent

Habit:

Powdery - Forms a loose, poorly-coherent pulverulent mass.

Hardness:

3-3.5 - Calcite-Copper Penny

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Poitevinite

Gladstone-Dale:

CI meas= -0.048 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.065 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2047,KPDmeas= 0.2016,KC= 0.1923
Ncalc = 1.62 - 1.63

Optical Data:

Biaxial (+), a=1.626, b=1.671, g=1.699, bire=0.0730, 2V(Calc)=74, 2V(Meas)=75.

Calculated Properties of Poitevinite

Electron Density:

Bulk Density (Electron Density)=3.24 gm/cc
note: Specific Gravity of Poitevinite =3.30 gm/cc.

Fermion Index:

Fermion Index = 0.0051423591
Boson Index = 0.9948576409

Photoelectric:

PE_Poitevinite= 15.11 barns/electron
U=PE_Poitevinite x rElectron Density= 48.97 barns/cc.

Radioactivity:

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

Poitevinite Classification

Dana Class:

29.06.02.04 (29)Hydrated Acid and Sulfates

(29.06)where A XO4 ï¿½ x(H2O)

(29.06.02)Kieserite Group (Mono-hydrates)

29.06.02.01 Kieserite MgSO4•(H2O) C 2/c 2/m

29.06.02.02 Szomolnokite FeSO4•(H2O) A2/a 2/m

29.06.02.03 Szmikite MnSO4•(H2O) A2/a 2/m

29.06.02.04 Poitevinite (Cu,Fe,Zn)SO4•(H2O) P1 1

29.06.02.05 Gunningite (Zn,Mn)SO4•(H2O) A2/a 2/m

29.06.02.06 Dwornikite (Ni,Fe)SO4•(H2O) C 2/c 2/m

29.06.02.07 Cobaltkieserite! CoSO4•H2O C 2/c 2/m

Strunz Class:

07.CB.05 07 - SULFATES (SELENATES, TELLURATES)

07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O

07.CB -With only medium-sized cations

07.CB.05 Gunningite (Zn,Mn)SO4•(H2O) A2/a 2/m

07.CB.05 Dwornikite (Ni,Fe)SO4•(H2O) C 2/c 2/m

07.CB.05 Kieserite MgSO4•(H2O) C 2/c 2/m

07.CB.05 Poitevinite (Cu,Fe,Zn)SO4•(H2O) P1 1

07.CB.05 Szomolnokite FeSO4•(H2O) A2/a 2/m

07.CB.05 Szmikite MnSO4•(H2O) A2/a 2/m

07.CB.05 Cobaltkieserite! CoSO4•H2O C 2/c 2/m

Other Poitevinite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Poitevinite :
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
15 - WWW-MINCRYST

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

Poitevinite

(Cu,Fe++,Zn)SO4•(H2O)
Dana No: 29.06.02.04 Strunz No: 07.CB.05
Locality:

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