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Sicherite

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Formula:
TlAg2(As,Sb)3S6
System:
Orthorhombic
Colour:
Dark gray, black
Lustre:
Metallic
Hardness:
3
Name:
After Valentin Sicher, an active member in the syndicate that operates the Lengenbach quarry for scientific studies and specimen production.
This page provides mineralogical data about Sicherite.


Classification of Sicherite

IMA status:
Approved
Approval Year:
1997
Nickel-Strunz 10th (pending) ed.:
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

Physical Properties of Sicherite

Lustre:
Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Dark gray, black
Streak:
Dark brown-red
Hardness (Mohs):
3

Chemical Properties of Sicherite

Formula:
TlAg2(As,Sb)3S6
Elements listed in formula:
Ag, As, S, Sb, Tl - search for minerals with similar chemistry

Crystallography of Sicherite

Crystal System:
Orthorhombic

Type Occurrence of Sicherite

Type Locality:
ⓘ Lengenbach Quarry, Fäld (Imfeld; Im Feld; Feld), Binn Valley, Wallis (Valais), Switzerland

Relationship of Sicherite to other Species

Related Minerals - Nickel-Strunz Grouping):
2.HD.05LoránditeTlAsS2
2.HD.05WeissbergiteTlSbS2
2.HD.15ChristiteTlHgAsS3
2.HD.20JankovićiteTl5Sb9(As,Sb)4S22
2.HD.25RebuliteTl5Sb5As8S22
2.HD.30ImhofiteTl5.8As15.4S26
2.HD.35EdenharteritePbTlAs3S6
2.HD.40JentschiteTlPbAs2SbS6
2.HD.45HutchinsoniteTlPbAs5S9
2.HD.50BernarditeTlAs5S8
2.HD.60GabrieliteTl6Ag3Cu6(As,Sb)9S21

Other Names for Sicherite

Synonyms:

IMA1997-051

Name in Other Languages:
German:Sicherit
Simplified Chinese:斜硫锑砷银铊矿
Spanish:Sicherita

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:
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

    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.
    (TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Switzerland (TL)
     
    • Wallis (Valais)
      • Binn Valley
        • Fäld (Imfeld; Im Feld; Feld)
    		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.
    Mineral and/or Locality  
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