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Pillaite

A valid IMA mineral species
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About PillaiteHide

04080810014946588451606.jpg
Leopoldo Pilla
Formula:
Pb9Sb10S23ClO0.5
Colour:
Black
Lustre:
Metallic
Hardness:
3 - 4
Specific Gravity:
5.77 (Calculated)
Crystal System:
Monoclinic
Name:
Named for Leopoldo Pilla (Venafro, October 24, 1805 - Curtatone, 29 May 1848), an early Italian earth scientist and hero of Italian independence.
This page provides mineralogical data about Pillaite.


Unique IdentifiersHide

Mindat ID:
10318
Long-form identifier:
mindat:1:1:10318:1
GUID
(UUID V4):
8dc2c3a2-00c4-4eb9-9435-f1e0508617e4

IMA Classification of PillaiteHide

Classification of PillaiteHide

2.JB.35c

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
PilIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of PillaiteHide

Metallic
Transparency:
Opaque
Colour:
Black
Streak:
Black to dark brown
Hardness:
3 - 4 on Mohs scale
Hardness:
VHN50=175 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
None
Fracture:
Irregular/Uneven
Density:
5.77 g/cm3 (Calculated)
Comment:
Could not be measured

Optical Data of PillaiteHide

Anisotropism:
weak
Bireflectance:
weak
Reflectivity:
WavelengthR
470nm35.7%
546nm34.5%
589nm34.0%
650nm32.7%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 35.7%.
Internal Reflections:
Rare - red
Pleochroism:
Non-pleochroic

Chemistry of PillaiteHide

Mindat Formula:
Pb9Sb10S23ClO0.5

Crystallography of PillaiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 49.65(3) Å, b = 4.150(4) Å, c = 21.91(1) Å
β = 99.76(5)°
Ratio:
a:b:c = 11.964 : 1 : 5.28
Unit Cell V:
4449 ų
Z:
4

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0006897PillaiteMeerschaut A, Palvadeau P, Moello Y, Orlandi P (2001) Lead-antimony sulfosalts from Tuscany (Italy). IV. Crystal structure of pillaite, Pb9Sb10S23ClO0.5, an expanded monoclinic derivative of hexagonal Bi(Bi2S3)9I3, from the zinkenite group European Journal of Mineralogy 13 779-7902001Buca della Vena mine, Tuscany, Italy0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.14 Å(27)
3.98 Å(12)
3.88 Å(20)
3.621 Å(26)
3.548 Å(40)
3.480 Å(100)
3.365 Å(13)
3.249 Å(24)
2.956 Å(47)
2.780 Å(22)
2.359 Å(13)
Comments:
d measured.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-𝑇 alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of PillaiteHide

General Appearance of Type Material:
Acicular [010] to 1 cm length and 0.1 mm thickness
Place of Conservation of Type Material:
Museo di Storia Naturale e del Territorio at the University of Pisa, Italy.
Geological Setting of Type Material:
Late extensional calcite veins embedded in dolomitic limestones.
Associated Minerals at Type Locality:
Reference:
Orlandi, P., Moelo, Y., Meerschaut, A., Palvadeau, P. (2001) Lead-antimony sulfosalts from Tuscany (Italy). III. Pillaite, Pb9Sb10S23ClO0.5, a new Pb-Sb oxy-chloro-sulfosalt, from Buca della Vena mine. European Journal of Mineralogy: 13: 605-610.

Synonyms of PillaiteHide

Other Language Names for PillaiteHide

German:Pillait
Spanish:Pillaita

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Pillaite associated with SphaleriteZnS
1 photo of Pillaite associated with PyriteFeS2
1 photo of Pillaite associated with ScainiitePb14Sb30S54O5
1 photo of Pillaite associated with TintinaitePb22Cu4(Sb,Bi)30S69

Related Minerals - Strunz-mindat GroupingHide

2.JB.SenandoriteAgPbSb3S6Orth. mm2 : Pmn21
2.JB.OscarkempffiteAg10Pb4(Sb17Bi9)S48Orth. mm2
2.JB.ChukotkaiteAgPb7Sb5S15Mon. 2/m : P21/b
2.JB.ArsenquatrandoriteAg17.6Pb12.8Sb38.1As11.5S96Mon. 2/m : P21/b
2.JB.Clino-oscarkempffiteAg15Pb6Sb21Bi18S72Mon. 2/m : P21/b
2.JB.AndreadiniiteCuHgAg7Pb7Sb24S48Mon. 2/m : P21/b
2.JB.GinelfiteAg2(Ag0.5Fe)TlPb23.5(Sb,As)33.5S76Tric. 1 : P1
2.JB.LazerckeriteAg3.75Pb4.50(Sb7.75Bi4)S24Mon. 2/m
2.JB.LasmanisiteAg12Pb13Mn11Sb44S96Orth. 2 2 2 : P21 21 21
2.JB.MontpelvouxiteAgPb16Sb27As18S84Tric. 1 : P1
2.JB.SelenojunoiteCu2Pb3Bi8Se16Mon. 2/m : B2/m
2.JB.05DiaphoriteAg3Pb2Sb3S8Mon. 2/m : P21/b
2.JB.10CosalitePb2Bi2S5Orth. mmm (2/m 2/m 2/m)
2.JB.15FreieslebeniteAgPbSbS3Mon. 2/m : P21/b
2.JB.15MarriteAgPbAsS3Mon. 2/m : P21/b
2.JB.20CannizzaritePb48Bi56S132Mon. 2/m : P21/m
2.JB.20WittitePb9Bi12(S,Se)27Mon.
2.JB.25aJunoiteCu2Pb3Bi8(S,Se)16Mon. 2/m : B2/m
2.JB.25iNeyiteAg2Cu6Pb25Bi26S68Mon. 2/m : B2/m
2.JB.25cNordströmiteCuPb3Bi7(Se4S10)Mon. 2/m : P21/m
2.JB.25gNuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7Orth. mmm (2/m 2/m 2/m)
2.JB.25dProuditeCuPb7.5Bi9.33(S,Se)22Mon. 2/m : B2/m
2.JB.25hWeibullitePb5Bi8Se7S11Orth. mmm (2/m 2/m 2/m) : Pnma
2.JB.25bFelbertaliteCu2Pb6Bi8S19Mon. 2/m : B2/m
2.JB.25jRouxeliteCu2HgPb23Sb27S65.5Mon. 2/m : B2/m
2.JB.25fÁngelaiteCu2AgPbBiS4Orth. mmm (2/m 2/m 2/m) : Pnma
2.JB.25iCuproneyiteCu7Pb27Bi25S68Mon. 2/m : B2/m
2.JB.30aGeocronitePb14Sb6S23Mon. 2/m : P21/m
2.JB.30aJordanitePb14As6S23Mon. 2/m : P21/m
2.JB.30bKirkiitePb10Bi3As3S19Mon. 2/m : P21/m
2.JB.30cTsugaruitePb28As15S50ClOrth. mm2 : Pnn2
2.JB.30aMarcobaldiitePb12(Sb3As2Bi)Σ6S21Tric. 1 : P1
2.JB.30aArsenmarcobaldiitePb12(As3.2Sb2.8)Σ6S21Tric. 1 : P1
2.JB.35aZinkenitePb9Sb22S42Hex. 6 : P63
2.JB.35bScainiitePb14Sb30S54O5Mon. 2/m : B2/m
2.JB.35dPellouxite(Cu,Ag)Pb10Sb12S27O(Cl,S)0.6Mon. 2/m : B2/m
2.JB.35fTubuliteAg2Pb22Sb20S53 Mon. m : Pb
2.JB.35eChovanitePb15-2xSb14+2xS36Ox (x ~ 0.2)Mon. 2/m : B2/m
2.JB.40bAschamalmitePb6-3xBi2+xS9Mon. 2/m : B2/m
2.JB.40aBursaitePb5Bi4S11 (?)Orth.
2.JB.40bEskimoiteAg7Pb10Bi15S36Mon.
2.JB.40aFizélyiteAg5Pb14Sb21S48 Mon. 2/m
2.JB.40aGustaviteAgPbBi3S6Orth. mmm (2/m 2/m 2/m)
2.JB.40aLillianitePb3-2xAgxBi2+xS6Orth. mmm (2/m 2/m 2/m)
2.JB.40cOurayiteAg3Pb4Bi5S13Orth.
2.JB.40aRamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24Mon. 2/m
2.JB.40aRoshchiniteAg19Pb10Sb51S96Orth. mmm (2/m 2/m 2/m) : Pnma
2.JB.40dSchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9Orth.
2.JB.40aTreasuriteAg7Pb6Bi15S32Mon.
2.JB.40aUchucchacuaiteAgMnPb3Sb5S12Orth. mmm (2/m 2/m 2/m) : Pmmm
2.JB.40eUstarasitePb(Bi,Sb)6S10 (?)
2.JB.40aVikingiteAg5Pb8Bi13S30Mon. 2/m : B2/m
2.JB.40aXilingolitePb3Bi2S6Mon.
2.JB.40bHeyrovskýitePb6Bi2S9Orth. mmm (2/m 2/m 2/m) : Cccm
2.JB.40UM1988-05-S:AgBiCuHgPb(Hg,Ag,Cu,Pb)5Pb5Bi11S27
2.JB.40UM1988-06-S:AgBiCuHgPb(Pb,Hg)12(Cu,Ag)3(Bi,Sb)10(S,Te)27
2.JB.40aQuatrandoriteAgPbSb3S6Mon. 2/m : P21/b
2.JB.40aMenchettiiteAgPb2.40Mn1.60Sb3As2S12Mon. 2/m : P21/b
2.JB.40aTerrywallaceiteAgPb(Sb,Bi)3S6 Mon. 2/m : P21/b
2.JB.40aJasrouxiteAg16Pb4(Sb24As16)S72Tric. 1 : P1
2.JB.40aErzwiesiteAg8Pb12Bi16S40Orth. mmm (2/m 2/m 2/m) : Cmcm
2.JB.40aStaročeskéiteAg0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6Orth. mmm (2/m 2/m 2/m) : Cmcm
2.JB.40aOyoniteAg3Mn2Pb4Sb7As4S24Mon. 2/m
2.JB.40aHolubiteAg3Pb6(Sb8Bi3)S24Mon. 2/m
2.JB.40bBaiamareiteAg4Pb12Fe4Sb20S48Mon. 2/m
2.JB.55GratonitePb9As4S15Trig. 3m : R3m
2.JB.60MarrucciiteHg3Pb16Sb18S46Mon. 2/m : B2/m
2.JB.65VurroitePb20Sn2(Bi,As)22S54Cl6Mon. 2/m : B2/b
2.JB.65TazieffitePb20Cd2(As,Bi)22S50Cl10Mon. 2/m : B2/b
2.JB.70DaliranitePbHgAs2S5Mon.

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.

Internet Links for PillaiteHide

References for PillaiteHide

Localities for PillaiteHide

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Italy (TL)
 
  • Tuscany
    • Lucca Province
      • Stazzema
        • Pontestazzemese
Orlandi et al. (2001) +1 other reference
 
Mineral and/or Locality  
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