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Pillaite

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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.


Classification of PillaiteHide

Approved
Approval Year:
1997
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

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)

Optical Data of PillaiteHide

Type:
Anisotropic
Anisotropism:
weak
Bireflectance:
weak
Internal Reflections:
Rare - red
Pleochroism:
Non-pleochroic

Chemical Properties of PillaiteHide

Formula:
Pb9Sb10S23ClO0.5
IMA 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

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.

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:

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 - Nickel-Strunz GroupingHide

2.JB.Andorite VIAgPbSb3S6Orth. mm2 : Pmn21
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.JB.25cNordströmiteCuPb3Bi7(Se4S10)Mon.
2.JB.25gNuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7Orth.
2.JB.25dProuditeCuPb7.5Bi9.33(S,Se)22Mon. 2/m : B2/m
2.JB.25hWeibullitePb5Bi8Se7S11Orth.
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.30aGeocronitePb14(Sb,As)6S23Mon. 2/m : P21/m
2.JB.30aJordanitePb14(As,Sb)6S23Mon. 2/m : P21/m
2.JB.30bKirkiitePb10Bi3As3S19Mon. 2/m : P21/m
2.JB.30cTsugaruitePb28As15S50ClOrth.
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.35fTubuliteAg2Pb22Sb20S53Mon. m : Pb
2.JB.35eChovanitePb15-2xSb14+2xS36Ox (x ~ 0.2)Mon. 2/m : B2/m
2.JB.40bAschamalmitePb6Bi2S9Mon. 2/m
2.JB.40aBursaitePb5Bi4S11 (?)Orth.
2.JB.40bEskimoiteAg7Pb10Bi15S36Mon.
2.JB.40aFizélyiteAg5Pb14Sb21S48Mon. 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.
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.40aAndorite IVPb18Ag15Sb47S96Mon. 2 : P2
2.JB.55GratonitePb9As4S15Trig. 3m : R3m
2.JB.60MarrucciiteHg3Pb16Sb18S46Mon. 2/m : B2/m
2.JB.65VurroitePb20Sn2(Bi,As)22S54Cl6Orth.

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 PillaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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.
Meerschaut, A., Palvadeau, P., Moelo, 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, 779-790.
Kaden, R., Wagner, G., Bente, K. (2012): Crystal chemistry and electrical conductivity of boulangerite, dadsonite and iodine-substituted pillaite grown by chemical vapor transport. Canadian Mineralogist, 50, 219-233.

Internet Links 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 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.
Italy (TL)
 
  • Tuscany
    • Lucca Province
      • Stazzema
        • Ponte Stazzemese
Orlandi P., 2003. Buca della Vena: i solfosali aciculari di piombo e antimonio (Alpi Apuane, Toscana, Italia). Riv. Miner. Ital., 4: 224-229.
 
Mineral and/or Locality  
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