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Scainiite

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About ScainiiteHide

Formula:
Pb14Sb30S54O5
Colour:
Black, bluish metallic with dark red tint
Lustre:
Metallic
Specific Gravity:
5.56 (Calculated)
Crystal System:
Monoclinic
Name:
For Dr. Giuseppe Scaini (1906-1988), engineer and skillful investigator of systematic and Italian mineralogy.
This page provides mineralogical data about Scainiite.


Classification of ScainiiteHide

Approved
Approval Year:
1997
2.JB.35b

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 ScainiiteHide

Metallic
Transparency:
Opaque
Colour:
Black, bluish metallic with dark red tint
Hardness:
VHN100=192 - Vickers
Hardness Data:
Measured
Tenacity:
Brittle
Fracture:
Irregular/Uneven
Density:
5.56 g/cm3 (Calculated)

Optical Data of ScainiiteHide

Type:
Anisotropic
Anisotropism:
weak
Bireflectance:
weak
Internal Reflections:
rare red internal reflections

Chemical Properties of ScainiiteHide

Formula:
Pb14Sb30S54O5

Crystallography of ScainiiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Cell Parameters:
a = 52 Å, b = 8.148 Å, c = 24.31 Å
β = 104.09°
Ratio:
a:b:c = 6.382 : 1 : 2.984
Unit Cell V:
9991 ų
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.039 Å(13)
3.773 Å(11)
3.706 Å(4)
3.622 Å(11)
3.472 Å(100)
3.441 Å(18)
3.041 Å(35)
2.956 Å(54)
2.827 Å(20)
2.706 Å(8)
2.628 Å(8)
2.441 Å(5)
2.356 Å(5)
2.296 Å(7)
2.228 Å(22)
2.100 Å(2)
2.052 Å(46)
2.006 Å(8)
1.973 Å(8)
1.947 Å(129
1.898 Å(9)
1.867 Å(6)
1.827 Å(4)
Comments:
d and I observed. Gandolfi camera, diameter 114.6 mm.

Type Occurrence of ScainiiteHide

General Appearance of Type Material:
Acicular crystals, elongated [010], black in colour with bluish metallic luster. The bluish colour apparently arises from a superficial very low hydrothermal alteration of the crystals.
Place of Conservation of Type Material:
Museo di Storia Naturale e del Territorio, Pisa University, Italy Catalogue numbers: 15521, 15522, 15523.
Musée de l'Ecole des Mines de Paris, France.
Geological Setting of Type Material:
Late extensional calcite veins embedded in the dolomitic limestones.

Synonyms of ScainiiteHide

Other Language Names for ScainiiteHide

German:Scainit
Spanish:Scainita

Common AssociatesHide

Associated Minerals Based on Photo Data:
5 photos of Scainiite associated with PyriteFeS2
1 photo of Scainiite associated with PillaitePb9Sb10S23ClO0.5

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.35cPillaitePb9Sb10S23ClO0.5Mon. 2/m : B2/m
2.JB.35aZinkenitePb9Sb22S42Hex. 6 : P63
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 ScainiiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
-Orlandi P., Moëlo Y., Meerschaut A., Palvadeau P. (1999). Lead-antimony sulfosalts from Tuscany (Italy). I. Scainiite, Pb^14Sb^30S^54O^5, the first Pb-Sb oxy-sulfosalt, from Buca della Vena mine, European Journal of Mineralogy: 11: 949-954.
European Journal of Mineralogy: 12: 835-846.
Zeitschrift für Kristallographie: 173: 1-23.

Internet Links for ScainiiteHide

Localities for ScainiiteHide

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., Moëlo Y., Meerschaut A., Palvadeau P. (1999): Lead-antimony sulfosalts from Tuscany (Italy): I. Scainiite, Pb14Sb30S54O5, the first Pb-Sboxy-sulfosalt, from Buca della Vena mine., European Journal of Mineralogy 11, 949-954
Slovakia
 
  • Banská Bystrica Region
    • Žiar nad Hronom District
Števko M., Sejkora J., Dolníček Z., Škácha P. (2018): Selenium-rich Ag-Au mineralization at the Kremnica Au-Ag epithermal deposit, Slovak Republic. Minerals (in press).
  • Košice Region
    • Gelnica District
      • Gelnica (Göllnitz)
Jiří Sejkora, Daniel Ozdín, František Laufek, Jakub Plášil, Jiří Litochleb (2011): Marrucciite, a rare Hg-sulfosalt from the Gelnica ore deposit (Slovak Republic), and its comparison with the type occurrence at Buca della Vena mine (Italy). Journal of GEOsciences, 56, 399-408.
  • Žilina Region
    • Liptovský Mikuláš District
Chovan, M., Majzlan, J., Ragan, M., Siman, P., Krištín, J. (1998): Pb-Sb and Pb-Sb-Bi sulfosalts and associated sulphides from Dúbrava antimony deposit, Nízké Tatry Mts. Acta Geologica Universitatis Comenianae, 53, 37-49. Sejkora, J. & Kouřimský, J. (2005): Atlas minerálů České a Slovenské republiky. Academia, Praha, 375 p. (in Czech)
        • Ľudovít adit
Martin Števko and Jiří Sejkora-unpublished (EMPA-WDS and PXRD confirmed)
      • Partizánska Lupča
Topa, D., Sejkora, J., Makovicky, E., Pršek, J., Ozdín, D., Putz, H., Dittrich, H. & Karup-Møller, S. (2012): Chovanite, Pb15-2xSb14+2xS36Ox (x ~ 0.2), a new sulphosalt species from the Low Tatra Mountains, Western Carpathians, Slovakia. European Journal of Mineralogy, 24, 727-740.
 
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