Sicherite
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Formula:
TlAg2(As,Sb)3S6
Colour:
Dark gray, black
Lustre:
Metallic
Hardness:
3
Crystal System:
Orthorhombic
Name:
After Valentin Sicher (1925-2017), for more then 50 years, active member of and thus financial contributor to the different Lengenbach syndicates that operate the Lengenbach quarry for scientific studies and specimen production.
This page provides mineralogical data about Sicherite.
Classification of Sicherite
Approved
Approval Year:
1997
2.HD.55
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
D : With Tl
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
D : With Tl
Physical Properties of Sicherite
Chemical Properties of Sicherite
Formula:
TlAg2(As,Sb)3S6
Crystallography of Sicherite
Crystal System:
Orthorhombic
Type Occurrence of Sicherite
Synonyms of Sicherite
Other Language Names for Sicherite
Related Minerals - Nickel-Strunz Grouping
2.HD.05 | Lorándite | TlAsS2 | Mon. 2/m : P21/b |
2.HD.05 | Weissbergite | TlSbS2 | Tric. 1 : P1 |
2.HD.15 | Christite | TlHgAsS3 | Mon. 2/m |
2.HD.20 | Jankovićite | Tl5Sb9(As,Sb)4S22 | Tric. 1 : P1 |
2.HD.25 | Rebulite | Tl5Sb5As8S22 | Mon. 2/m : P21/b |
2.HD.30 | Imhofite | Tl5.8As15.4S26 | Mon. 2/m |
2.HD.35 | Edenharterite | PbTlAs3S6 | Orth. |
2.HD.40 | Jentschite | TlPbAs2SbS6 | Mon. |
2.HD.45 | Hutchinsonite | TlPbAs5S9 | Orth. |
2.HD.50 | Bernardite | TlAs5S8 | Mon. 2/m : P21/b |
2.HD.60 | Gabrielite | Tl6Ag3Cu6(As,Sb)9S21 | Tric. 1 : P1 |
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 Sicherite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (2001): 86: 1087-1093.
Internet Links for Sicherite
mindat.org URL:
https://www.mindat.org/min-11028.html
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Localities for Sicherite
Locality List




All localities listed without proper references should be considered as questionable.
Switzerland (TL) | |
| Am. Mineral. 86 (2001) 1087-1093; Guastoni, A., Roth, P. and Nestola, F. (2014): Sicherite, eccezionale ritrovamento a Lengenbach, valle di Binn, Svizzera. Rivista Mineralogica Italiana, 38(1), 32-34. |
Lengenbach Quarry, Fäld, Binn Valley, Wallis, Switzerland