Tooeleite Mineral Data

Tooeleite Mineral Data +

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General Tooeleite Information

Chemical Formula:

Fe+++(8-2x)[(As(1-x),S(x))O4]6·5(H2O)

Composition:

Molecular Weight = 1,388.96 gm

Iron 30.56 % Fe 43.69 % Fe₂O₃

Arsenic 25.35 % As 38.89 % As₂O₅

Hydrogen 1.12 % H 9.99 % H₂O

Sulfur 3.00 % S 7.49 % SO₃

Oxygen 39.97 % O

______ ______

100.00 % 100.06 % = TOTAL OXIDE

Empirical Formula:

Fe³⁺_7.6(AsO₄)_4.7(SO₄)_1.3(OH)₆·4.7(H₂O)

Environment:

Occurs in voids in massive scorodite.

IMA Status:

Approved IMA 1992

Locality:

Found on waste dumps of the former gold and arsenic mines in the Gold Hill district, western Tooele County, Utah, USA. Link to MinDat.org Location Data.

Name Origin:

Named after its locality.

Synonym:

IMA1990-010

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Tooeleite Crystallography

Axial Ratios:

a:b:c =0.3298:1:0.4596

Cell Dimensions:

a = 6.416, b = 19.45, c = 8.941, Z = 2; V = 1,115.76 Den(Calc)= 4.13

Crystal System:

OrthorhombicSpace Group: Pbcm,Pbc21

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

By Intensity(I/I_o): 9.75(1), 3.208(0.9), 3.047(0.5),

Physical Properties of Tooeleite

Cleavage:

[???] Good

Color:

Brown orange, Yellow orange.

Density:

4.238

Diaphaniety:

Transparent

Habit:

Bladed - Aggregates of thin lath-like crystals (e.g. kyanite).

Habit:

Encrustations - Forms crust-like aggregates on matrix.

Habit:

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

Hardness:

3 - Calcite

Luster:

Greasy (Oily)

Streak:

orange

Optical Properties of Tooeleite

Gladstone-Dale:

CI meas= 0.035 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.01 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2454,KPDmeas= 0.2391,KC= 0.2478

Optical Data:

Biaxial (-), a=1.94, b=2.04-2.05, g=2.05-2.06, bire=0.1100-0.1200, 2V(Calc)=32, 2V(Meas)=small. Dispersion r > v slight.

Pleochroism (x):

lemon yellow.

Pleochroism (y):

orange.

Pleochroism (z):

lemon yellow.

Calculated Properties of Tooeleite

Electron Density:

r_electron=3.96 gm/cc
note: r_Tooeleite=4.13 gm/cc.

Fermion Index

Fermion Index = 0.00689
Boson Index = 0.99311

Photoelectric:

PE_Tooeleite= 26.59 barns/electron
U=PE_Tooeleite x r_electron= 105.40 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Tooeleite is Not Radioactive

Tooeleite Classification

Dana Class:

42.12.5.1 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.12)with miscellaneous formulae

(42.12.5)Dana Group

42.12.5.1 Tooeleite Fe(8-2x)[(As(1-x),S(x))O4]6·5(H2O) Pbcm,Pbc21 Ortho

Strunz Class:

VII/D.05-50 VII - Phosphates, Arsenates and Vanadates

VII/D - Water-bearing phosphates with unfamiliar anions, cations of medium size: Cu, Zn, Mn, Al, Fe

VII/D.05 - Pitticite - Zykaite series

VII/D.05-10 Pitticite Hydrousferricarsenatesulfate(Fe,AsO4,SO4,H2O) None

VII/D.05-20 Diadochite Fe2(PO4)(SO4)(OH)·6(H2O) P1 1

VII/D.05-30 Sarmientite Fe2(AsO4)(SO4)(OH)·5(H2O) P 2₁/c 2/m

VII/D.05-40 Bukovskyite Fe2(AsO4)(SO4)(OH)·7(H2O) P1 or P1 Tri

VII/D.05-50 Tooeleite Fe(8-2x)[(As(1-x),S(x))O4]6·5(H2O) Pbcm,Pbc21 Ortho

VII/D.05-60 Zykaite Fe4(AsO4)3(SO4)(OH)·15(H2O) Unk Ortho

Other Tooeleite Information

References:

NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.77,p1306,1992) OPTIC PROP.(AntBidBlaNic4)

See Also:

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

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

Tooeleite

Fe+++(8-2x)[(As(1-x),S(x))O4]6·5(H2O)
Dana No: 42.12.5.1 Strunz No: VII/D.05-50
Locality:

Notes: