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Mallestigite

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About MallestigiteHide

Formula:
Pb3Sb5+(SO4)(AsO4)(OH)6 · 3H2O
Colour:
Colourless, yellow
Lustre:
Adamantine
Hardness:
4
Specific Gravity:
4.91 (Calculated)
Crystal System:
Hexagonal
Name:
After the type locality: Mallestiger Mittagskogel Mt., Finkenstein, Karawanken Mts, Carinthia, Austria.
Fleischerite Group.

May be confused with quartz (in its common prismatic habit) and mimetite.


Classification of MallestigiteHide

Approved
7.DF.25

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
F : With large and medium-sized cations

Physical Properties of MallestigiteHide

Adamantine
Transparency:
Transparent, Translucent
Colour:
Colourless, yellow
Streak:
white
Hardness:
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Splintery
Density:
4.91 g/cm3 (Calculated)

Optical Data of MallestigiteHide

Type:
Uniaxial (+)
RI values:
nω = 1.760(4) nε = 1.801(4)
Max Birefringence:
δ = 0.041
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of MallestigiteHide

Formula:
Pb3Sb5+(SO4)(AsO4)(OH)6 · 3H2O
IMA Formula:
Pb3Sb(SO4)(AsO4)(OH)6 · 3H2O

Crystallography of MallestigiteHide

Crystal System:
Hexagonal
Class (H-M):
6 - Pyramidal
Space Group:
P63
Cell Parameters:
a = 8.938 Å, c = 11.098 Å
Ratio:
a:c = 1 : 1.242
Unit Cell V:
767.81 ų (Calculated from Unit Cell)
Z:
2

Geological EnvironmentHide

Paragenetic Mode(s):
•  Oxidation

Type Occurrence of MallestigiteHide

General Appearance of Type Material:
elongate, colorless, euhedral to subhedral hexagonal prismatic crystals, up to 2 mm long and 0.4 mm wide, and radial aggregates to 3 mm in diameter
Associated Minerals at Type Locality:

Synonyms of MallestigiteHide

Other Language Names for MallestigiteHide

Simplified Chinese:羟砷锑铅矾石
Spanish:Mallestigita
Traditional Chinese:羥砷銻鉛礬石

Relationship of Mallestigite to other SpeciesHide

Other Members of this group:
DespujolsiteCa3Mn4+(SO4)2(OH)6 · 3H2OHex. 6 m2 : P62c
FleischeritePb3Ge(SO4)2(OH)6 · 3H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
GenplesiteCa3Sn(SO4)2(OH)6·3H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
SchaurteiteCa3Ge(SO4)2(OH)6 · 4H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
Unnamed (Ba-Sb Silicate-Sulphate-Hydroxide-Hydrate)Ba3Sb5+[(Si,S)O3(OH)]2(OH,O)6 · 3H2O Trig. 3 : P3

Common AssociatesHide

Associated Minerals Based on Photo Data:
6 photos of Mallestigite associated with SchultenitePb(HAsO4)
3 photos of Mallestigite associated with AnglesitePbSO4
3 photos of Mallestigite associated with BaryteBaSO4
3 photos of Mallestigite associated with GalenaPbS
1 photo of Mallestigite associated with MimetitePb5(AsO4)3Cl
1 photo of Mallestigite associated with Copper Sulphides

Related Minerals - Nickel-Strunz GroupingHide

7.DF.Aldridgeite(Cd,Ca)(Cu,Zn)4(SO4)2(OH)6 · 3H2O Mon. 2/m : B2/b
7.DF.ChromschieffelinitePb10Te6+6O20(OH)14(CrO4)(H2O)5Orth. 2 2 2 : C2 2 21
7.DF.AlcaparrosaiteK3Ti4+Fe3+(SO4)4O(H2O)2Mon. 2/m : B2/b
7.DF.Ammoniomathesiusite(NH4)5(UO2)4(SO4)4(VO5)·4H2OTet. 4/m : P4/n
7.DF.05UklonskoviteNaMg(SO4)F · 2H2OMon.
7.DF.10KainiteKMg(SO4)Cl · 3H2OMon. 2/m : B2/m
7.DF.15NatrochalciteNaCu2(SO4)2(OH) · 2H2OMon. 2/m : B2/m
7.DF.20MetasideronatriteNa2Fe(SO4)2(OH) · H2OOrth. mmm (2/m 2/m 2/m)
7.DF.20SideronatriteNa2Fe(SO4)2(OH) · 3H2OOrth. 2 2 2 : P21 21 21
7.DF.25DespujolsiteCa3Mn4+(SO4)2(OH)6 · 3H2OHex. 6 m2 : P62c
7.DF.25FleischeritePb3Ge(SO4)2(OH)6 · 3H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
7.DF.25SchaurteiteCa3Ge(SO4)2(OH)6 · 4H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
7.DF.30Slavíkite(H3O+)3Mg6Fe15(SO4)21(OH)18 · 98H2OTrig. 3 : R3
7.DF.35MetavoltineNa6K2FeFe6(SO4)12O2 · 18H2OTrig.
7.DF.40LannoniteMg2Ca4Al4(SO4)8F8 · 24H2O Tet. 4/m : I4/m
7.DF.40VlodavetsiteAlCa2(SO4)2F2Cl · 4H2OTet. 4/m : I4/m
7.DF.45PeretaiteCa(SbO)4(SO4)2(OH)2 · 2H2OMon. 2/m : B2/b
7.DF.50GordaiteNaZn4(SO4)(OH)6Cl · 6H2OTrig. 3 : P3
7.DF.55Clairite(NH4)2Fe3(SO4)4(OH)3 · 3H2OTric.
7.DF.60ArzruniteCu4Pb2(SO4)(OH)4Cl6 · 2H2O (?)Orth.
7.DF.65ElyitePb4Cu(SO4)O2(OH)4 · H2OMon. 2/m
7.DF.70YecoraiteFe3+3Bi5(Te6+O4)2(Te4+O3)O9 · 9H2O
7.DF.75RiomarinaiteBi(SO4)(OH) · H2OMon. 2/m
7.DF.80DukeiteBi3+24Cr6+8O57(OH)6 · 3H2OTrig. 3m : P3 1c
7.DF.85XocolatliteCa2Mn4+2(Te6+O6)2 · H2OMon. 2/m : P2/m

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for MallestigiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Sima, I., Ettinger, K., Koppelhuber-Bitschnau, B., Taucher, J., Walter, F. (1996) Pb3Sb(OH)6(AsO4,SO4)2.3H2O, ein neues Mineral isotyp mit Fleischerit. Mitteilungen der Österreichischen Mineralogischen Gesellschaft: 141: 224-225. (in German)
Sima, I. (1998) Mallestigit, Pb3Sb(SO4)(AsO4)(OH6).3H2O, ein neues Mineral von einer Halde des ehemaligen Cu-Pb-Zn-Bergbaues NW des Mallestiger Mittagskogels in den Westkarawanken, Kärnten, Österreich. Mitteilungen der Österreichischen Mineralogischen Gesellschaft: 143: 225-227. (in German)
Schnorrer, G. (2003) Mallestigit, Pb3Sb[(OH)6|AsO4|SO4]•3H2O, eine weitere Mineralneubildung in den antiken Schlacken des Harzes - ein zweiter Fundort für diese Verbindung und ein weiterer Beweis für die Bildung sowohl auf "natürlichen" als auch auf "künstlichen" Schlackenhalden. Aufschluss: 54: 42-44. (in German)
Frost, Ray L., Palmer, S.J., Xi, Y., Tan, K. (2011) Raman spectroscopy of the multi-anion mineral mallestigite Pb3Sb5+ (SO4)(AsO4)(OH)6·3H2O: A mineral of archaeological significance. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy: 83(1): 432-436.

Internet Links for MallestigiteHide

Localities for MallestigiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria (TL)
 
  • Carinthia
    • Villach-Land District
      • Finkenstein am Faaker See
        • Mallestiger Mittagskogel
Puttner, M. (1996): New minerals from the Neufinkenstein-Grabanz mine, Mallestiger Mittagskogel (western Karawanken, Carinthia, Austria). Aufschluss 47, 186-192. (in German); I. Sima et al.: Mitt. Öster. Miner. Ges. 143:225-227 (1998)
  • Styria
    • Weiz District
      • Gasen
C.Auer (2016)
  • Tyrol
    • Kufstein District
      • Brixlegg
        • Geyer - Silberberg District
          • Silberberg
            • West slope ("Am Geyer")
R. Poeverlein and J. Gröbner (2007): "Der Bergbau Geyer bei Rattenberg in Tirol und seine Mineralien", Lapis 32(2), 34-38.
Germany
 
  • Lower Saxony
    • Goslar
      • Goslar
        • Astfeld
Schnorrer, G. (2003): Mallestigit, Pb3Sb[(OH)6|AsO4|SO4]•3H2O, eine weitere Mineralneubildung in den antiken Schlacken des Harzes - ein zweiter Fundort für diese Verbindung und ein weiterer Beweis für die Bildung sowohl auf "natürlichen" als auch auf "künstlichen" Schlackenhalden. Aufschluss 54, 42-44 (in German).
Italy
 
  • Friuli-Venezia Giulia
    • Udine Province
      • Forni Avoltri
Giarduz M., Iob S., Bittarello E., Ciriotti M., Fassina B. (2015): Mallestigite di Monte Avanza: terzo ritrovamento mondiale. Micro, 2-2015, 54-63.
Spain
 
  • Andalusia
    • Almería
      • Pechina
        • Baños de Alhamilla
Rewitzer, C., Hochleitner, R. y Fehr, T. Mina Casualidad, Baños de Alhamilla, Almería, Spain (part 2). Mineral Up, 5, (5), 8-36
 
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