Tooeleite Mineral Data

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General Tooeleite Information

Chemical Formula:

Fe+++6(AsO3)4(SO4)(OH)4•4H2O

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 and acid mine drainage.

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.

Name Pronunciation:

Tooeleite + Pronunciation

Synonym:

IMA1990-010

Tooeleite Image

Images:

Tooeleite

Comments: SEM photograph of typical tooeleite crystal terminations. MinMag v56:71.
Location: U.S. Mine, Tooele Country, Utah. USA. Scale: Scale Bar 50 µm.
© Mineralogical Magazine

Tooeleite Crystallography

Axial Ratios:

a:b:c =1.3944:1:1.5242

Cell Dimensions:

a = 8.9575, b = 6.4238, c = 9.7912, Z = 1; beta = 96.032° V = 560.28 Den(Calc)= 4.12

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m

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

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

Crystal Structure:

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Morin G , Rousse G , Elkaim E , American Mineralogist , 92 (2007) p.193-197, Crystal structure of tooeleite, Fe6(AsO3)4SO4(OH)4 * 4H2O, a new iron arsenite, oxyhydroxysulfate mineral relevant of acid mine drainage, Locality: Tooele County, Utah

Physical Properties of Tooeleite

Cleavage:

{???} Good

Color:

Brown orange, Yellow orange.

Density:

4.238

Diaphaneity:

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= 0.008 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.246,KPDmeas= 0.2391,KC= 0.2478
Ncalc = 2.02 - 2.05

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:

Bulk Density (Electron Density)=3.95 gm/cc
note: Specific Gravity of Tooeleite =4.12 gm/cc.

Fermion Index:

Fermion Index = 0.0068969259
Boson Index = 0.9931030741

Photoelectric:

PE_Tooeleite= 26.59 barns/electron
U=PE_Tooeleite x rElectron Density= 105.15 barns/cc.

Radioactivity:

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

Tooeleite Classification

Dana Class:

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

(42.12)with miscellaneous formulae

(42.12.05)Dana Group

42.12.05.01 Tooeleite Fe6(AsO3)4(SO4)(OH)4•4H2O C 2/m 2/m

Strunz Class:

04.JD.15 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.J - Arsenites, Antimonites, Bismuthites, Sulfites,

04.JD -Arsenites, antimonites, bismuthites; with additional anions, with H2O

04.JD.15 Tooeleite Fe6(AsO3)4(SO4)(OH)4•4H2O C 2/m 2/m

Other Tooeleite Information

References:

NAME( Dana8) PHYS. PROP.(AmMin v77:1306 and v92:193) OPTIC PROP.(AntBidBlaNic4)

See Also:

Links to other databases for Tooeleite :
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 Tooeleite Specimen Label here :

Tooeleite

Fe+++6(AsO3)4(SO4)(OH)4•4H2O
Dana No: 42.12.05.01 Strunz No: 04.JD.15
Locality:

Notes: