Heptasartorite
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About Heptasartorite
Formula:
Tl7Pb22As55S108
Colour:
Grey
Lustre:
Metallic
Hardness:
3 - 3½
Crystal System:
Monoclinic
Member of:
Sartorite homologous series.
Physical and optical properties similar to enneasartorite and hendekasartorite. Careful quantitative chhemical analysis and/or single-crystal X-ray diffraction is needed to distinguish them.
Physical and optical properties similar to enneasartorite and hendekasartorite. Careful quantitative chhemical analysis and/or single-crystal X-ray diffraction is needed to distinguish them.
Classification of Heptasartorite
Physical Properties of Heptasartorite
Chemical Properties of Heptasartorite
Formula:
Tl7Pb22As55S108
IMA Formula:
Tl7Pb22As55S108
Elements listed:
Crystallography of Heptasartorite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 29.269(2) Å, b = 7.8768(5) Å, c = 20.128(2) Å
β = 102.065(2)°
β = 102.065(2)°
Ratio:
a:b:c = 3.716 : 1 : 2.555
Unit Cell V:
4537.8 ų
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
9.84 | (72) |
3.86 | (59) |
3.52 | (100) |
3.46 | (51) |
2.955 | (75) |
2.952 | (58) |
2.753 | (73) |
2.752 | (73) |
Type Occurrence of Heptasartorite
Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the Naturhistorisches Museum Wien, Austria, catalogue number N 9859
Geological Setting of Type Material:
Found in the late sulfide phases in the Pb–Tl–Ag–As deposit of Lengenbach, Wallis, Switzerland.
Synonyms of Heptasartorite
Relationship of Heptasartorite to other Species
Member of:
Other Members of this group:
Argentobaumhauerite | Ag1.5Pb22As33.5S72 | Tric. 1 : P1 |
Argentodufrénoysite | Ag3Pb26As35S80 | Tric. 1 : P1 |
Argentoliveingite | AgxPb40-2xAs48+xS112 | Tric. 1 : P1 |
Barikaite | Ag3Pb10(Sb8As11)S40 | Mon. 2/m : P21/b |
Baumhauerite | Pb12As16S36 | Tric. 1 : P1 |
Bernarlottiite | Pb6(As5Sb3)S18 | Tric. 1 : P1 |
Boscardinite | TlPb4(Sb7As2)S18 | Tric. 1 : P1 |
Carducciite | (Ag2Sb2)Pb12(As,Sb)16S40 | Mon. 2/m : P21/b |
Dekatriasartorite | TlPb58As97S204 | Mon. 2/m : P21/b |
Dufrénoysite | Pb2As2S5 | Mon. 2 : P21 |
Écrinsite | AgTl3Pb4As11Sb9S36 | Tric. 1 : P1 |
Enneasartorite | Tl6Pb32As70S140 | Mon. 2/m : P21/b |
Guettardite | PbAsSbS4 | Mon. 2/m : P21/b |
Hendekasartorite | Tl2Pb48As82S172 | Mon. 2/m : P21/b |
Hyršlite | Pb8As10Sb6S32 | Mon. 2 : P21 |
Incomsartorite | Tl6Pb144As246S516 | Mon. 2/m |
Liveingite | Pb9As13S28 | Mon. |
Parapierrotite | TlSb5S8 | Mon. m |
Philrothite | TlAs3S5 | Mon. 2/m : P21/b |
Pierrotite | Tl2(Sb,As)10S16 | Orth. mm2 : Pna21 |
Polloneite | AgPb46As26Sb23S120 | Mon. 2 : P21 |
Rathite | Ag2Pb12-xTlx/2As18+x/2S40 | Mon. 2/m : P21/b |
Sartorite | PbAs2S4 | Mon. 2/m : P21/m |
Twinnite | Pb0.8Tl0.1Sb1.3As0.8S4 | Mon. 2/m |
Veenite | Pb2(Sb,As)2S5 | Mon. 2 : P21 |
Other Information
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 Heptasartorite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Topa, D., Stroeger, B., Makovicky, E., Berlepsch, P.and Stanley, C. (2015) Heptasartorite, IMA 2015-073. CNMNC Newsletter No. 28, December 2015, page 1861; Mineralogical Magazine, 79, 1859–1864.
Topa, D., Makovicky, E., Stöger, B., Stanley, C. (2017): Heptasartorite, Tl7Pb22As55S108, enneasartorite, Tl6Pb32As70S140 and hendekasartorite, Tl2Pb48As82S172, three members of the anion-omission series of ‘sartorites’ from the Lengenbach quarry at Binntal, Wallis, Switzerland. European Journal of Mineralogy 29, 701-712.
Makovicky, E., Topa, D., Stoeger, B. (2018): The crystal structures of heptasartorite, Tl7Pb22As55S108, and enneasartorite, Tl6Pb32As70S140, two members of an anion-omission series of complex sulfosalts from Lengenbach, the Swiss Alps, and comparison with the structures of As–Sb sartorite homologues. Eur. J. Mineral. 30, 149-164.
Internet Links for Heptasartorite
mindat.org URL:
https://www.mindat.org/min-46890.html
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External Links:
Mineral Dealers:
Localities for Heptasartorite
Locality List




All localities listed without proper references should be considered as questionable.
Switzerland (TL) | |
| Topa, D., Stroeger, B., Makovicky, E., Berlepsch, P.and Stanley, C. (2015) Heptasartorite, IMA 2015-073. CNMNC Newsletter No. 28, December 2015, page 1861; Mineralogical Magazine, 79, 1859–1864. |
Lengenbach Quarry, Fäld, Binn Valley, Wallis, Switzerland