Schlossmacherite Mineral Data

General Schlossmacherite Information

Chemical Formula:

(H3O,Ca)Al3(AsO4,SO4)2(OH)6

Composition:

Molecular Weight = 463.69 gm

Calcium 2.16 % Ca 3.02 % CaO

Aluminum 17.46 % Al 32.98 % Al₂O₃

Arsenic 24.24 % As 37.18 % As₂O₅

Hydrogen 1.79 % H 16.03 % H₂O

Sulfur 3.46 % S 8.63 % SO₃

Oxygen 50.89 % O

______ ______

100.00 % 97.84 % = TOTAL OXIDE

Empirical Formula:

(H₃O)_0.75Ca_0.25Al₃(AsO₄)_1.5(SO₄)_0.5(OH)₆

IMA Status:

Approved IMA 1980

Locality:

Emma Luisa mine, Guanaco, Chile. Link to MinDat.org Location Data.

Name Origin:

Named for Karl Schlossmacher (1887-?), mineralogist and honorary member of the German Gemological Society.

Name Pronunciation:

Schlossmacherite + Pronunciation

Schlossmacherite Image

Images:

Schlossmacherite

Comments: Small (up to 3 mm) clusters of pale yellow green Schlossmacherite crystals on a siliceous matrix.
Location: Guanaco, Chile. Scale: Picture size 5 mm.
© John Veevaert

Schlossmacherite Crystallography

Axial Ratios:

a:c = 1:2.3821

Cell Dimensions:

a = 6.998, c = 16.67, Z = 3; V = 706.99 Den(Calc)= 3.27

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): 2.96(1), 4.92(0.7), 2.98(0.5),

Physical Properties of Schlossmacherite

Color:

Gray green, Light green.

Density:

Diaphaneity:

Transparent to Translucent

Hardness:

3-4 - Calcite-Fluorite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Schlossmacherite

Gladstone-Dale:

CI meas= 0.027 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.108 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1826,KPDmeas= 0.199,KC= 0.2046
Ncalc = 1.61 - 1.67

Optical Data:

Uniaxial (+), e=1.597.

Calculated Properties of Schlossmacherite

Electron Density:

Bulk Density (Electron Density)=2.95 gm/cc
note: Specific Gravity of Schlossmacherite =3.00 gm/cc.

Fermion Index:

Fermion Index = 0.0005354848
Boson Index = 0.9994645152

Photoelectric:

PE_{Schlossmacherite}= 17.04 barns/electron
U=PE_{Schlossmacherite} x rElectron Density= 50.21 barns/cc.

Radioactivity:

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

Schlossmacherite Classification

Dana Class:

30.02.04.03 (30)Anhydrous Sulfates Containing Hydroxyl or Halogen

(30.02)where (A B)2 XO4 Zq

(30.02.04)Alunite Group (Alunite Subgroup)

30.02.04.01 Alunite KAl3(SO4)2(OH)6 R 3m, R 3m Trig

30.02.04.02 Natroalunite NaAl3(SO4)2(OH)6 R 3m 3 2/m

30.02.04.03 Schlossmacherite (H3O,Ca)Al3(AsO4,SO4)2(OH)6 R 3m 3 2/m

30.02.04.04 Osarizawaite PbCuAl2(SO4)2(OH)6 R 3m 3m

30.02.04.05 Minamiite (Na,Ca,K)Al3(SO4)2(OH)6 R 3m 3 2/m

30.02.04.06 Ammonioalunite (NH4)Al3(SO4)2(OH)6 R 3m 3 2/m

30.02.04.07 Walthierite Ba0.5Al3(SO4)2(OH)6 R 3m 3 2/m

30.02.04.08 Huangite Ca0.5Al3(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 Schlossmacherite 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 Schlossmacherite :
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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Ask about Schlossmacherite here :
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Print or Cut-and-Paste your Schlossmacherite Specimen Label here :

Schlossmacherite

(H3O,Ca)Al3(AsO4,SO4)2(OH)6
Dana No: 30.02.04.03 Strunz No: 07.BC.10
Locality:

Notes: