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Franckeite

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Formula:
Fe2+(Pb,Sn2+)6Sn4+2Sb2S14
Colour:
Grey-black, black; iridescent at times
Lustre:
Metallic
Hardness:
2½ - 3
Specific Gravity:
5.90
Crystal System:
Triclinic
Name:
After the mining engineers Carl and Ernest Francke.
This page provides mineralogical data about Franckeite.


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Classification of FranckeiteHide

Approved, 'Grandfathered' (first described prior to 1959)
2.HF.25b

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
F : With SnS and PbS archetype structure units
3.1.4.2

3 : SULFOSALTS
1 : ø > 4
6.1.18

6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
1 : Sulphostannates and other sulfides containing Sn

Physical Properties of FranckeiteHide

Metallic
Transparency:
Opaque
Colour:
Grey-black, black; iridescent at times
Streak:
Grayish black
Hardness:
2½ - 3 on Mohs scale
Tenacity:
Malleable
Cleavage:
Perfect
{010} perfect.
Comment:
Flexible, inelastic
Density:
5.90(2) g/cm3 (Measured)    5.88 g/cm3 (Calculated)

Optical Data of FranckeiteHide

Type:
Anisotropic
Anisotropism:
Weak
Colour in reflected light:
Gray-white
Pleochroism:
Weak
Comments:
Very weak.

Chemical Properties of FranckeiteHide

Formula:
Fe2+(Pb,Sn2+)6Sn4+2Sb2S14
IMA Formula:
Pb21.7Sn9.3Fe4.0Sb8.1S56.9
Common Impurities:
Zn,Ag,Ge,In

Crystallography of FranckeiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 46.9 Å, b = 5.82 Å, c = 17.3 Å
α = 90°, β = 94.66°, γ = 90°
Ratio:
a:b:c = 8.058 : 1 : 2.973
Unit Cell V:
4,706.56 ų (Calculated from Unit Cell)
Z:
8
Morphology:
Thin tabular {010}, elongated [100]; {010} striated [001], and less markedly [100]. Usually massive, radial, or foliated; often in spherical, rosette-like or cauliform aggregates of thin plates. Crystals often warped or bent.
Twinning:
Complex.

X-Ray Powder DiffractionHide

Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Type Occurrence of FranckeiteHide

Synonyms of FranckeiteHide

Other Language Names for FranckeiteHide

German:Franckeit
Simplified Chinese:辉锑锡铅矿

Varieties of FranckeiteHide

PotosíiteA Sn(II)-poor variety franckeite; originally thought to be a separate species.
See also incaite.

Relationship of Franckeite to other SpeciesHide

Other Members of this group:
Coiraite(Pb,Sn)12.5Sn5FeAs3S28Mon.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Potosíite216 photos of Franckeite associated with Potosíite on mindat.org.
Pyrite50 photos of Franckeite associated with Pyrite on mindat.org.
Sphalerite31 photos of Franckeite associated with Sphalerite on mindat.org.
Jamesonite24 photos of Franckeite associated with Jamesonite on mindat.org.
Quartz23 photos of Franckeite associated with Quartz on mindat.org.
Vauxite20 photos of Franckeite associated with Vauxite on mindat.org.
Galena19 photos of Franckeite associated with Galena on mindat.org.
Boulangerite18 photos of Franckeite associated with Boulangerite on mindat.org.
Metavauxite18 photos of Franckeite associated with Metavauxite on mindat.org.
Paravauxite18 photos of Franckeite associated with Paravauxite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.HF.20VrbaiteHg3Tl4As8Sb2S20Orth. mmm (2/m 2/m 2/m) : Cmca
2.HF.25aCylindritePb3Sn4FeSb2S14Tric. 1 : P1
2.HF.25bIncaite(Pb,Ag)4Sn4FeSb2S15Mon.
2.HF.25aLévyclauditePb8Sn7Cu3(Bi,Sb)3S28
2.HF.25bPotosíitePb6Sn3FeSb3S16Tric.
2.HF.25bCoiraite(Pb,Sn)12.5Sn5FeAs3S28Mon.
2.HF.25aAbramovitePb2SnInBiS7Tric. 1 : P1
2.HF.30Lengenbachite Ag4Cu2Pb18As12S39Tric.

Related Minerals - Dana Grouping (8th Ed.)Hide

3.1.4.1CylindritePb3Sn4FeSb2S14Tric. 1 : P1
3.1.4.3Incaite(Pb,Ag)4Sn4FeSb2S15Mon.
3.1.4.4PotosíitePb6Sn3FeSb3S16Tric.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

6.1.1KuramiteCu3SnS4Tet.
6.1.2MohiteCu2SnS3Mon.
6.1.3VelikiteCu2HgSnS4Tet.
6.1.4HemusiteCu6SnMoS8Iso.
6.1.5KiddcreekiteCu6SnWS8Iso. 4 3m : F4 3m
6.1.6StanniteCu2FeSnS4Tet. 4 2m : I4 2m
6.1.7RhodostanniteCu2FeSn3S8Tet. 4/m : I41/a
6.1.8MawsoniteCu6Fe2SnS8Tet. 4 2m : P4m2
6.1.9ChatkaliteCu6FeSn2S8Tet. 4 2m : P4m2
6.1.10FerrokësteriteCu2(Fe,Zn)SnS4Tet. 4 : I4
6.1.11KësteriteCu2ZnSnS4Tet. 4 : I4
6.1.12StannoiditeCu+6Cu2+2(Fe2+,Zn)3Sn2S12Orth.
6.1.13ČernýiteCu2(Cd,Zn,Fe)SnS4Tet. 4 2m : I4 2m
6.1.14VincienniteCu+7Cu2+3Fe2+2Fe3+2Sn(As,Sb)S16Tet.
6.1.15PirquitasiteAg2ZnSnS4Tet. 4 : I4
6.1.16HocartiteAg2(Fe2+,Zn)SnS4Tet. 4 2m : I4 2m
6.1.17Teallite(Pb,Sn)SnS2Orth. mmm (2/m 2/m 2/m) : Pnma
6.1.19LévyclauditePb8Sn7Cu3(Bi,Sb)3S28
6.1.20CylindritePb3Sn4FeSb2S14Tric. 1 : P1
6.1.21PotosíitePb6Sn3FeSb3S16Tric.
6.1.22Sakuraiite(Cu,Zn,Fe)3(In,Sn)S4 Iso.
6.1.23Petrukite(Cu,Fe,Zn,Ag)3(Sn,In)S4Orth.
6.1.24Incaite(Pb,Ag)4Sn4FeSb2S15Mon.

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 FranckeiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Breithaupt In: Hintze (1904): 1(1): 1198.
Stelzner (1893) Jb. Min.: 11: 114.
Palache, Charles, Harry Berman & Clifford Frondel (1944) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 448-450.
Williams, T.B. and Hyde, B.G. (1988) Electron microscopy of cylindrite and franckeite. Phys. Chem. Minerals 15, 521–544.
Mottana, A.; Fiori, S.; Parodi, G.C. (1992) Improved X-ray powder diffraction data for franckeite. Powder Diffr. 7, 112–114.
American Mineralogist (1995) 80: 1174.
Makovicky, E.; Petříček, V.; Dušek, M.D.; Topa, D. (2011) The crystal structure of franckeite, Pb21.7Sn9.3Fe4.0Sb8.1S56.9. Am. Mineral. 96, 1686-1702.

Internet Links for FranckeiteHide

Localities for FranckeiteHide

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.
Argentina
 
  • Jujuy
    • Rinconada Department
DE BRODTKORB, Milka K. Precious metaltellurides and other Te-bearing minerals in different paragenesis of Argentina: A review. Rev. Asoc. Geol. Argent. [online]. 2009, vol.64, n.3, pp. 365-372.
Amer.Min.(2000) 85, 1066-1075; Paar, W. H., Putz, H., Topa, D., de Brodtkorb, M. K., & Sureda, R. J. (2005, January). Occurrence and paragenesis of tellurium in mineral deposits of Argentina. In Mineral Deposit Research: Meeting the Global Challenge (pp. 1419-1422). Springer Berlin Heidelberg.
Paar, W. H. (2013): Pirquitasit - erstmals Kristalle aus Argentinien zu sehen. Mineralien-Welt 24 (3), 42-43 (in German).
Australia
 
  • New South Wales
    • King Co.
      • Rye Park
McQueen, K. G. (1988): Teallite, low-antimony franckeite and tin-bearing galena from the Wallah Wallah mine, Rye Park, New South Wales. Australian Mineral. 3 (3), 111-116.
  • Tasmania
    • Waratah-Wynyard municipality
      • Waratah district
        • Waratah
Bottrill (unpub)
          • Mt Bischoff mine
R Bottrill & A Tuma collections
    • West Coast municipality
      • Zeehan district
        • North Dundas
STILLWELL, F. L.; EDWARDS, A . B . 1943. Mineral composition of the tin ores at Renison Bell, Tasmania. Proc . Australas. Inst. Min . Metall. 131-132: 173-186.
Bolivia
 
  • Cochabamba Department
    • Arque Province
      • Cerro Grande District
Federico Ahlfeld y Alejandro Schneider-Scherbina (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia. (Ministerio de Minas y Petroleo, La Paz)
  • Oruro Department
    • Cercado Province
      • Oruro City
[MinRec 32:473]; Moricz, F., Walder, I. F., & Madai, F. (2009). Geochemical and mineralogical characterization of waste material from Itos Sn-Ag deposit, Bolivia. Proceeding of securing the future and 8th ICARD. Skellefteå, Sweden, 525-534.
[MinRec 32:479]; Mineralogical Record (2001) 32:248; Pastor, M., Pastor, A., Torró, L., Martínez, Á., Artiaga, D., Torres, B., ... & Alfonso, P. (2015) The San José-Itos Mines, Oruro, Bolivia: Structure and Ag-Sn Mineralization. in Mineral Resources in a Sustainable World • 13th SGA Biennial Meeting 2015. Proceedings, Volume 1 pp 327-330
    • Dalence Province
      • Huanuni
[MinRec 32:472]
Federico Ahlfeld and Alejandro Schneider-Scherbina (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia, Boletín No. 5 (Especial), page 17o (Ministerio de Minas y Petroleo, La Paz)
Dana 7:I:440,449,483.; Federico Ahlfeld and Alejandro Schneider-Scherbina (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia, Boletín No. 5 (Especial), page 171 (Ministerio de Minas y Petroleo, La Paz)
      • Santa Fé Mining District
Salomon Rivas and Federico Ahlfeld (1998) LosMinerales de Bolivia y sus Parajes. (Santa Cruz)
Salomon Rivas and Federico Ahlfeld (1998) Los Minerales de Bolivia y sus Parajes. (Santa Cruz)
    • Poopó Province
      • Callipampa
Dana 7:I:449, 483.
      • Pazña
        • Monserrat-Antequera district
Federico Ahlfeld and Alejandro Schneider-Scherbina (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia. (Ministerio de Minas y Petroleo, La Paz); Min Rec (1977) 8:52-57
[MinRec 32:477]
Ahlfeld and Schneider-Scherbina (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia, Ministerio de Minas y Petroleo, La Paz
[MinRec 32:479]
  • Potosí Department
    • Antonio Quijarro Province
Federico Ahlfeld and Alejandro Schneider-Scherbina (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia. (Ministerio de Minas y Petroleo, La Paz); Turneaure, F. S., & Gibson, R. (1945). Tin deposits of Carguaicollo, Bolivia. Am. J. Sci, 243, 523-541.
Ahlfeld, F. and Schneider-Scherbina, A. (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia. (Ministerio de Minas y Petroleo, La Paz)
    • Chayanta Province
[MinRec 32:469]
Dana 7:I:449.
    • José María Linares Province
苣木浅彦, & 北風嵐. (1988). Tin-bearing minerals from Bolivian polymetallic deposits and their mineralization stages. 鉱山地質, 38(211), 419-435.
    • Potosí City
[MinRec 32:465]
    • Rafael Bustillo Province (Bustillos Province)
      • Llallagua
[MinRec 32:474]; Hyrsl, J. & A. Petrov (2006): Famous Mineral Localities: Llallagua, Bolivia. Mineralogical Record. 37: 117-162
Min Rec (1977) 8:52-57
    • Sud Chichas Province
      • Atocha-Quechisla District
        • Chocaya-Animas (Animas-Chocaya)
[MinRec 32:461]
[MinRec 32:461]
Kempff, O., Paar, W.H., Tawackoli, S.: "Minerales de Bolivia", 115pp (La Paz, 2009)
Federico Ahlfeld y Alejandro Schneider-Scherbina (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia. (Ministerio de Minas y Petroleo, La Paz)
      • San Vicente District
Ahlfeld, F. & Schneider-Scherbina, A. (1964): Los Yacimientos Minerales y de Hidrocarburos de Bolivia.
Salomon Rivas And Federico Ahlfeld (1998) Los Minerales de Bolivia y sus Parajes (Santa Cruz); Geology and Mineral Resources of the Altiplano and Cordillera Occidental, Bolivia (USGS Bulletin no. 1975)
Federico Ahlfeld and Alejandro Schneider-Scherbina (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia. (Ministerio de Minas y Petroleo, La Paz)
    • Sud Lípez Province
      • San Pablo de Lípez
        • Santa Isabel district
Geology and Mineral Resources of the Altiplano and Cordillera Occidental, Bolivia (USGS Bulletin no. 1975)
Canada
 
  • British Columbia
    • Liard Mining Division
      • Turnagain River area
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990; Kissin, S.A. & Owens, D.R. (1989): The relatives of stannite in the light of new data. Canadian Mineralogist 27, 673-688.
  • Yukon
    • Watson Lake Mining District
Can Mineral 1957 6: 119-127.
China
 
  • Guangxi Zhuang Autonomous Region
    • Guigang Prefecture
      • Guiping Co.
Guangxiang Cheng (1984): Geology and Prospecting 20(9), 1-10, 32
    • Hechi Prefecture
      • Nandan Co.
        • Dachang Sn-polymetallic ore field
Guangxiang Cheng (1984): Geology and Prospecting 20(9), 1-10, 32
Guangxiang Cheng (1984): Geology and Prospecting 20(9), 1-10, 32
Guangxiang Cheng (1984): Geology and Prospecting 20(9), 1-10, 32; Minzhi Huang, Gongbao Wu, Yuchuan Chen, and Shaohua Tang (1986): Acta Geologica Sinica 60(2); Lianchi Lei (1986): Mineral Deposits 5(3), 87-96
  • Yunnan Province
    • Honghe Autonomous Prefecture
      • Mengzi Co.
Xinpei Jiang (1994): Acta Petrologica et Mineralogica 13(5), 278-284
France
 
  • Auvergne-Rhône-Alpes
    • Puy-de-Dôme
      • Anzat-le-Luguet
P. Picot, Z. Johan : "Atlas of Ore Minerals", BRGM, Elsevier, 1982
  • Brittany
    • Finistère
      • Huelgoat (Locmaria-Berrien)
R.PIERROT, L. CHAURIS, C. LAFORET (1973) : "Inventaire minéralogique de la France : 29- Finistère.", B.R.G.M. Paris.
Greece
 
  • Thraki Department (Thrace; Thracia)
    • Évros Prefecture
      • Kirki Mines (Kirka)
Bull. Minéral. , 1985, 108, pp. 667-677.
Ireland
 
  • Co. Meath
    • Navan (An Uaimh)
Ryback, G., Nawaz, R. and Farley, E. (1988) Seventh Supplementary List of British Isles Minerals (Irish). Mineralogical Magazine, vol. 52, n° 365, pp. 267-274.
Japan
 
  • Kyushu Region
    • Oita Prefecture
      • Bungo-Ohno City
Uehara, S., et al. (2014) Minerals from Kyushu and Yamaguchi. (Fukuoka Mineral Club, 355 pages)
Kyrgyzstan
 
  • Talas Oblast
    • Talas Silver District
      • Kurgan ore cluster
Pavlova, G.G., and Borisenko, A.S. (2009): Ore Geology Reviews 35, 164-185.
Russia
 
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
      • Sarychev Range
G. N. Gamyanin et al. (2001) Geology of Ore Deposits, 43, 442–467; Mills S.J., Kartashov P.M., Gamyanin G.N., Whitfield P.S., Kern A., Guerault H., Kampf A.R., Raudsepp M. (2011) Fluorocronite, the natural analogue of β-PbF2, from the Saha Republic, Russian Federation. European Journal of Mineralogy, 23, 695-700.
      • Verkhoyansk Fold Belt
        • Verkhoyansk Silver Province
          • Deputatsky ore cluster
Pavlova, G.G., and Borisenko, A.S. (2009): Ore Geology Reviews 35, 164-185.
Pavlova, G.G., and Borisenko, A.S. (2009): Ore Geology Reviews 35, 164-185.
Pavlova, G.G., and Borisenko, A.S. (2009): Ore Geology Reviews 35, 164-185.
          • Southern Verkhoyansk District
Pavlova, G.G., and Borisenko, A.S. (2009): Ore Geology Reviews 35, 164-185.
  • Far-Eastern Region
    • Primorskiy Kray
Dobrovol’skaya, M.G., Genkin, A.D., Bortnikov, N.S., and Golovanova, T.I. (2008): Geology of Ore Deposits 50(1), 75-85.
USA
 
  • California
    • Inyo Co.
      • Darwin Hills
        • Darwin District
          • Darwin
            • Darwin Mine (Anaconda; Bernon Mine; Defiance Mine; Essex Mine; Independence Mine; Intermediate Mine; Rip Van Winkle Mine; Thompson Mine)
Hall, Wayne Everett & E.M. Mackevett (1958), Economic geology of the Darwin quadrangle, Inyo County, California: Calif Division of Mines Special Report 51, 77 pp.: 17; Hall, Wayne Everett & Edward M. Mackevett (1963), Geology and ore deposits of the Darwin quadrangle, Inyo County, California: USGS PP 368: 61; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 137.
Handbook of Mineralogy
    • Santa Cruz Co.
      • Santa Cruz
Gross, Eugene Bischoff & John E.N. Wainwright (1964), Barium-tin-titanium silicate having the benitoite structure (abstract): Geological Society of America, Cordilleran Section Meeting Program, Seattle, March 1964: 36; Gross, E.B., Wainwright, J.E.N., and Evans, B.W. (1965) Pabstite, the tin analogue of benitoite. American Mineralogist: 50: 1164-116; Gross, E.B., Chesterman, C.W., Dunning, G.E., and Cooper, J.F. (1967) Mineralogy of the Kalkar quarry, Santa Cruz, California. California Division Mines and Geol. Special Report 92: 5-6, 8; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 93, 137, 138.
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