Dorallcharite Mineral Data

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General Dorallcharite Information

Chemical Formula:

(Tl,K)Fe+++3(SO4)2(OH)6

Composition:

Molecular Weight = 616.51 gm

Potassium 1.90 % K 2.29 % K₂O

Thallium 23.21 % Tl 25.02 % TlO

Iron 27.18 % Fe 38.85 % Fe₂O₃

Hydrogen 0.98 % H 8.77 % H₂O

Sulfur 10.40 % S 25.97 % SO₃

Oxygen 36.33 % O

______ ______

100.00 % 100.91 % = TOTAL OXIDE

Empirical Formula:

Tl_0.7K_0.3Fe³⁺₃(SO₄)₂(OH)₆

Environment:

Oxidized portions of a Tl-bearing hydrothermal sulfide-sulfosalt deposit.

IMA Status:

Approved IMA 1994

Locality:

Alsar (Allchar), near Rosden, Macedonia. Link to MinDat.org Location Data.

Name Origin:

Named from the French dore, golden yellow, and the famous mining locality, Alsar (Allchar), Macedonia.

Name Pronunciation:

Dorallcharite + Pronunciation

Synonym:

ICSD 74610

IMA1992-041

PDF 47-1768

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Dorallcharite Crystallography

Axial Ratios:

a:c = 1:2.40966

Cell Dimensions:

a = 7.3301, c = 17.6631, Z = 3; V = 821.90 Den(Calc)= 3.74

Crystal System:

Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m

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

By Intensity(I/I_o): 3.112(1), 5.947(0.87), 3.666(0.34),

Crystal Structure:

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Balic-Zunic T , Moelo Y , Loncar Z , Micheelsen H , European Journal of Mineralogy , 6 (1994) p.255-263, Dorallcharite, Tl0.8K0.2Fe3(SO4)2(OH)6, a new, member of the jarosite-alunite family

Physical Properties of Dorallcharite

Cleavage:

{0001} Good

Color:

Golden yellow.

Density:

3.85

Diaphaneity:

Transparent

Hardness:

3-4 - Calcite-Fluorite

Luster:

Earthy (Dull)

Streak:

yellow

Optical Properties of Dorallcharite

Gladstone-Dale:

CI meas= -0.019 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.049 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2126,KPDmeas= 0.2065,KC= 0.2027
Ncalc = 1.76 - 1.78

Optical Data:

Uniaxial (-), e=1.768, w=1.822, bire=0.0540.

Calculated Properties of Dorallcharite

Electron Density:

Bulk Density (Electron Density)=3.63 gm/cc
note: Specific Gravity of Dorallcharite =3.85 gm/cc.

Fermion Index:

Fermion Index = 0.0067195821
Boson Index = 0.9932804179

Photoelectric:

PE_{Dorallcharite}= 371.60 barns/electron
U=PE_{Dorallcharite} x r_electron=1,347.81 barns/cc.

Radioactivity:

GRapi = 25.84 (Gamma Ray American Petroleum Institute Units)
Concentration of Dorallcharite per GRapi unit = 3.87 (%)

Estimated Radioactivity from Dorallcharite - barely detectable

Dorallcharite Classification

Dana Class:

30.02.05.08 (30)Anhydrous Sulfates Containing Hydroxyl or Halogen

(30.02)where (A B)2 XO4 Zq

(30.02.05)Alunite Group (Jarosite Subgroup)

30.02.05.01 Jarosite KFe3(SO4)2(OH)6 R 3 3

30.02.05.02 Natrojarosite NaFe3(SO4)2(OH)6 R 3m 3m

30.02.05.03 Hydroniumjarosite (H3O)Fe3(SO4)2(OH)6 R 3m 3m

30.02.05.04 Ammoniojarosite (NH4)Fe3(SO4)2(OH)6 R 3m 3m

30.02.05.05 Argentojarosite AgFe3(SO4)2(OH)6 R 3m 3m

30.02.05.06 Plumbojarosite PbFe6(SO4)4(OH)12 R 3m 3 2/m

30.02.05.07 Beaverite PbCu(Fe,Al)2(SO4)2(OH)6 R 3m 3m

30.02.05.08 Dorallcharite (Tl,K)Fe3(SO4)2(OH)6 R 3m 3 2/m

Strunz Class:

07.BC.10 07 - SULFATES (SELENATES, TELLURATES)

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

07.BC -With medium-sized and large cations

07.BC.10 Alunite KAl3(SO4)2(OH)6 R 3m, R 3m Trig

07.BC.10 Ammonioalunite (NH4)Al3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Ammoniojarosite (NH4)Fe3(SO4)2(OH)6 R 3m 3m

07.BC.10 Beaverite PbCu(Fe,Al)2(SO4)2(OH)6 R 3m 3m

07.BC.10 Argentojarosite AgFe3(SO4)2(OH)6 R 3m 3m

07.BC.10 Huangite Ca0.5Al3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Dorallcharite (Tl,K)Fe3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Jarosite KFe3(SO4)2(OH)6 R 3 3

07.BC.10 Hydroniumjarosite (H3O)Fe3(SO4)2(OH)6 R 3m 3m

07.BC.10 Minamiite (Na,Ca,K)Al3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Natrojarosite NaFe3(SO4)2(OH)6 R 3m 3m

07.BC.10 Natroalunite NaAl3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Osarizawaite PbCuAl2(SO4)2(OH)6 R 3m 3m

07.BC.10 Plumbojarosite PbFe6(SO4)4(OH)12 R 3m 3 2/m

07.BC.10 Schlossmacherite (H3O,Ca)Al3(AsO4,SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Walthierite Ba0.5Al3(SO4)2(OH)6 R 3m 3 2/m

Other Dorallcharite Information

References:

NAME( AntBidBlaNic5) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(37th List of New Min.,Min. Mag.,19)

See Also:

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

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

Dorallcharite

(Tl,K)Fe+++3(SO4)2(OH)6
Dana No: 30.02.05.08 Strunz No: 07.BC.10
Locality:

Notes: