| Mallestigite Mineral Data |
General Mallestigite Information |
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| Pb3Sb+++++(SO4)(AsO4)(OH)6·3(H2O) | |||
| Molecular Weight = 1,135.63 gm | |||
| Antimony 10.18 % Sb 13.53 % Sb2O5 | |||
| Arsenic 5.81 % As 8.91 % As2O5 | |||
| Hydrogen 1.07 % H 9.53 % H2O | |||
| Lead 55.83 % Pb 60.14 % PbO | |||
| Sulfur 3.16 % S 7.90 % SO3 | |||
| Oxygen 23.95 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Pb3.06Sb0.95(SO4)1.12(AsO4)0.88(OH)5.99·3.01(H2O) | |||
| In narrow fractures of limstones formed from the weathering of galena and tetrahedrite. The antimony dominant analog of fleischerite. | |||
| Approved IMA 2002 (Dana # Added) | |||
| Dump of a Cu-Pp-Zn mine 1 km NW of Mallestiger Mittagskogel, Finkenstein, Villach, Kärnten, Austria Link to MinDat.org Location Data. | |||
| Named after the locality. | |||
| IMA1996-043 | |||
Mallestigite Image | |||
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Mallestigite Crystallography |
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| a:c = 1:1.24166 | |||
| a = 8.938, c = 11.098, Z = 2; V = 767.81 Den(Calc)= 4.91 | |||
| Hexagonal - TrapezohedralH-M Symbol (6 2 2) Space Group: P 63 | |||
| By Intensity(I/Io): 3.655(1)(201), 3.481(0.8)(112), 2.675(0.62)(203),6.35(0.44)(101), 2.235(0.35)(220), 3.175(0.31)(202), 7.74(0.25)(100), 1.741(0.24)(224), | |||
Physical Properties of Mallestigite |
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| None | |||
| Colorless. | |||
| Transparent | |||
| Brittle - Splintery - Brittle fracture leaving splintery fragments. | |||
| Euhedral Crystals - Occurs as well-formed crystals showing good external form. | |||
| 4 - Fluorite | |||
| Adamantine | |||
| white | |||
Optical Properties of Mallestigite |
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| CI calc= 0.016 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.159,KC= 0.1615 |
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| Uniaxial (+), w=1.76, e=1.801, bire=0.0410. | |||
Calculated Properties of Mallestigite |
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relectron=4.27 gm/cc |
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| Fermion Index = 0.12373 Boson Index = 0.87627 |
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PEMallestigite =1,023.43 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Mallestigite is Not Radioactive |
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Mallestigite Classification |
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| 31.7.6.4 (31)Hydrated Sulfates Containing Hydroxyl or Halogen | |||
| (31.7)where (A+ B++)2 (XO4) Zq·x(H2O) | |||
| (31.7.6)Dana Group | |||
| VI/D.11-40 VI - Sulfates,Chromates,Molybdates and Tungstates | |||
| VI/D - Water-bearing sulfates with unfamiliar anions. cations of medium and very big size | |||
| VI/D.11 - Despujolsite - Fleischerite series | |||
Other Mallestigite Information |
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| NAME( MinRec,35:357) PHYS. PROP.(CanMin, 41:1314) OPTIC PROP.(MinRec,35:357) | |||
| Links to other databases for Mallestigite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas Search for Mallestigite using: Visit our Advertisers for Mallestigite : Translate Mallestigite Mineral Data : Ask about Mallestigite here : Print or Cut-and-Paste your Mallestigite Specimen Label here :
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