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About Polybasite-TacHide

Specific Gravity:
6.33 - 6.35
Crystal System:
A polytype of Polybasite

Previously known as "antimonpearceite", which was originally described from Sonora, Mexico. Was renamed during a nomenclature change in 2006 (Bindi et al., 2007).

A Se-bearing variety has been described by Marquez-Zavalia et al. (2008).

Classification of Polybasite-TacHide

Renamed by the IMA
Approval History:
Renamed by IMA: 2006

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
2 : Sulpharsenites etc. of Ag

Physical Properties of Polybasite-TacHide

6.33 - 6.35 g/cm3 (Measured)    6.40 g/cm3 (Calculated)

Crystallography of Polybasite-TacHide

Crystal System:
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
Cell Parameters:
a = 7.40-7.60 Å, c = 11.86-12.06 Å
a:c = 1 : 1.603
Unit Cell V:
562.44 ų (Calculated from Unit Cell)
Thin tabular hexagonal crystals.
On {110}
Bindi et al. (2007) give: a = 7.4805(5), c = 11.8836(13) Å, V 575.89(8). Other unit-cell parameters reported: a = 7.455, c = 11.847 Å. Three Se-bearing samples (Márquez-Zavalía et al., 2008) have the following unit-cell parameters: 7.425(2), 11.853(4) Å, 7.465(1), 11.908(3) Å, 7.521(1), 11.965(3) Å.

Synonyms of Polybasite-TacHide

Other Language Names for Polybasite-TacHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Arsenopyrite3 photos of Polybasite-Tac associated with Arsenopyrite on mindat.org.
Chalcopyrite3 photos of Polybasite-Tac associated with Chalcopyrite on mindat.org.
Rhabdophane-(Ce)1 photo of Polybasite-Tac associated with Rhabdophane-(Ce) on mindat.org.
Pyrargyrite1 photo of Polybasite-Tac associated with Pyrargyrite on mindat.org.
Famatinite1 photo of Polybasite-Tac associated with Famatinite on mindat.org.
Tetrahedrite1 photo of Polybasite-Tac associated with Tetrahedrite on mindat.org.
Quartz1 photo of Polybasite-Tac associated with Quartz on mindat.org.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

5.2.1SmithiteAgAsS2Mon. 2/m
5.2.3ProustiteAg3AsS3Trig. 3m (3 2/m) : R3c
5.2.4XanthoconiteAg3AsS3Mon. 2/m : B2/b
5.2.5Pearceite[Ag9CuS4][(Ag,Cu)6(As,Sb)2S7]Trig. 3m (3 2/m) : P3m1
5.2.6Pearceite-T2acTrig. 3 2 : P3 2 1
5.2.7ArgentotennantiteAg6Cu4(Fe2+,Zn)2As4S12SIso. 4 3m : I4 3m
5.2.8MiargyriteAgSbS2Mon. 2/m : B2/b
5.2.9PyrargyriteAg3SbS3Trig. 3m : R3c
5.2.10PyrostilpniteAg3SbS3Mon. 2/m : P21/b
5.2.11StephaniteAg5SbS4Orth. mm2 : Cmc21
5.2.12Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]Mon. 2/m : B2/m
5.2.13BillingsleyiteAg7AsS6Iso. 2 3 : P21 3
5.2.15Freibergite(Ag,Cu,◻)10Fe2+2Sb4S12Iso. 4 3m : I4 3m
5.2.16AramayoiteAg3Sb2(Bi,Sb)S6Tric. 1 : P1
5.2.17MatilditeAgBiS2Trig. 3m (3 2/m) : P3m1
5.2.19PavoniteAgBi3S5Mon. 2/m : B2/m
5.2.21BohdanowicziteAgBiSe2Trig. 3m (3 2/m) : P3m1
5.2.23Benleonardite[Ag6(Sb,As)2S6Te] [Ag9Cu(S,Te)2Te2]Trig. 3m (3 2/m) : P3m1

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 Polybasite-TacHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Frondel, C. (1963) Isodimorphism and the polybasite and pearceite series. American Mineralogist: 48: 565-572.
Fleischer, M. (1965) New mineral names. American Mineralogist: 50: 1504-1508.
Bindi, L., Evain, M., Menchetti, S. (2006) Temperature dependence of the silver distribution in the crystal structure of natural pearceite, (Ag,Cu)16(As,Sb)2S11. Acta Crystallographica: B62: 212-219.
Evain, M., Bindi, L., Menchetti, S. (2006) Structural complexity in minerals: twinning, polytypism and disorder in the crystal structure of polybasite, (Ag,Cu)16(Sb,As)2S11. Acta Crystallographica: B62: 447-456.
Evain, M., Bindi, L., Menchetti, S. (2006) Structure and phase transition of the Se-rich variety of antimonpearceite, [(Ag,Cu)6(Sb,As)2(S,Se)7][Ag9Cu(S,Se)2Se2]. Acta Crystallographica: B62: 768-774.
Bindi, L., Evain, M., Spry, P.G., Menchetti, S. (2007) The pearceite-polybasite group of minerals: Crystal chemistry and new nomenclature rules. American Mineralogist: 92: 918-925.
Márquez-Zavalía, M.F., Bindi, L., Márquez, M., Menchetti, S. (2008): Se-bearing polybasite-Tac from the Martha mine,Macizo del Deseado, Santa Cruz, Argentina. Mineralogy and Petrology 94, 145-150.

Internet Links for Polybasite-TacHide

Localities for Polybasite-TacHide

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.
  • Santa Cruz Province
    • Magallanes department
      • Deseado massif
Marquez-Zavalia, M.F. et al. (2008): Mineral. Petrol. 94, 145-150.; FERNANDEZ, Raúl R. et al. Gold and silver deposits related to Jurassic Patagonian volcanism: review and perspectives for exploration. Rev. Asoc. Geol. Argent. [online]. 2008, vol.63, n.4, pp. 665-681.
  • Haskovo Province
    • Madzharovo Municipality
Tarkian, M.; Breskovska, V. (1990): Arsenic minerals and their genetic significance in the Madjarovo ore field, eastern Rhodope, Bulgaria. Neues Jahrbuch für Mineralogie, Monatshefte 1990, 433-442.
  • Montana Province
    • Chiprovtsi Obshtina
Petrova, M., & Ilieev, T. (2007). Compositional variations in the tetrahedrite-tennantite fahlores and polybasite-pearceite series from the Chiprovtsi Ag-Pb deposit, northwestern Bulgaria. Au-Ag telluride-selenide deposits, 26, 39.
  • Baden-Württemberg
    • Black Forest
      • St Blasien
        • Urberg
Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
    • Freiburg
      • Ortenaukreis
        • Oberwolfach
          • Frohnbach valley
K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
          • Rankach valley
Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German); KOLITSCH, U., GRÖBNER, J. & BAYERL, R. (1995): Die Mineralien der Silber-Antimon-Vererzungen der Grube Clara im Zeitraum 1993 bis 1995. - Erzgräber 9 (2), 61-77. ; Wendel, G. (2006): Antimonpearceite aus der Grube Clara, Oberwolfach. LAPIS 31 (2), 36-37
  • Rhineland-Palatinate
    • Altenkirchen
      • Kirchen
        • Niederfischbach
Schnorrer-Köhler, G. (1991): Mineralogische Notizen V, Der Aufschluss, Vol. 42, 155-171
  • Java
    • West Java Province
      • Bogor District
Syafrizal; Imai, A.; Motomura, Y.; Watanabe, K. (2005): Characteristics of gold mineralization at the Ciurug vein, Pongkor gold-silver deposit, West Java, Indonesia. Resource Geology 55, 225-238.
  • Sardinia
    • Metropolitan City of Cagliari
      • Sinnai
Digennaro, A., Quagliarella-Asciano, F. (1974) Antimonpearceite di Serra S'Ilixi (Sarrabus). Rendiconti della Società Italiana di Mineralogia e Petrologia, 30, 2, 1193-1199; Stara, P., Rizzo, R., Brizzi, G. (1993) Sarrabus. Miniere e Minerali. Associazione Mineralogica Sarda, Gruppo Mineralogico Lombardo, Associazione Piemontese Mineralogia Paleontologia e Mostra Torinese Minerali, Centro Mineralogico Varesino, Amici Mineralogisti Fiorentini, Gruppo Mineralogico Paleontologico Piacentino, et al., Stige Milano Srl, Milano, 208 pp.
    • South Sardinia Province
      • Sarrabus-Gerrei
        • Sarrabus
          • San Vito
AA. VV., 1996. Collezionare minerali. Hobby & Work.
  • Shizuoka
    • Toi-cho
Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
  • Guanajuato
Amer.Min.(1963) 48, 565-572
Amer.Min.(1963) 48, 565-572
    • Arizpe Municipality
      • Arizpe
Amer.Min.(1963) 48, 565-572
  • Zacatecas
    • Fresnillo Municipality
      • Fresnillo de Gonzalez Echeverria (Fresnillo)
Gemmell, J. B., Simmons, S. F., & Zantop, H. (1988). The Santo Nino silver-lead-zinc vein, Fresnillo District, Zacatecas, Mexico; Part I, Structure, vein stratigraphy, and mineralogy. Economic Geology, 83(8), 1597-1618.
  • Drâa-Tafilalet
    • Tinghir Province
      • Imiter District
Burniaux, P. and Williams-Jones, A.E., (2006) Controls Of Silver-Mercury Mineralization At Imiter, Morocco. in Geological Association of Canada, Program with Abstracts Volume 3
  • Prešov Region
    • Prešov Co.
Duda et. all.,1981:Minerály severnej časti Slanských vrchov. Min.Slovca,Monografia 2,Bratislava, 98 p
  • Castile and Leon
    • Salamanca
Revista de minerales, 2000 (Mars), 260-263.
Pascua, M. I., Murciego, A., Pellitero, E., Babkine, J., & Dusausoy, Y. (1997). Sn-Ge-Cd-Cu-Fe-bearing sulfides and sulfosalts from the Barquilla deposit, Salamanca, Spain. The Canadian Mineralogist, 35(1), 39-52.
  • England
    • Cornwall
      • St Minver
No reference listed
  • Alaska
    • Juneau
      • Admiralty Mining District
Taylor, C.D., and Johnson, C.A., editors, 2010, Geology, geochemistry, and genesis of the Greens Creek massive sulfide deposit, Admiralty Island, southeastern Alaska: U.S. Geological Survey Professional Paper 1763, 429 p., 7 plates on CD.
  • Colorado
    • Clear Creek Co.
Minerals of Colorado (1997) Eckel, E. B.
  • Missouri
    • Madison Co.
      • Fredericktown District
Sherwood, M. D., & Williams, G. A. (1998). Missouri mineral locality index. Rocks & Minerals, 73(2), 98-117.
  • Washington
    • Chelan Co.
      • Wenatchee Mining District
        • Wenatchee
          • Squillchuck Creek
Lasmanis, R. (1995): Mineral News: A Compendium of Wenatchee District Mineralogy, Chelan County, Washington, p.6-7
Mineral and/or Locality  
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