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Sinnerite

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Formula:
Cu6As4S9
System:
Triclinic
Colour:
Bronze, steel-grey, ...
Lustre:
Metallic
Hardness:
4 - 4½
Name:
Named after Rudolf von Sinner (1890-1960), President of the Commission of the Natural History Museum, Bern, Switzerland.
Known as a synthetic compound.


Classification of Sinnerite

Approved
Approval Year:
1964
2.GC.10

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
C : Poly-sulfarsenites
3.6.14.1

3 : SULFOSALTS
6 : 2 < ø < 2.49
5.1.1

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

Physical Properties of Sinnerite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Bronze, steel-grey, silver
Streak:
grey-black
Hardness (Mohs):
4 - 4½
Cleavage:
Poor/Indistinct

Chemical Properties of Sinnerite

Formula:
Cu6As4S9
Elements listed in formula:

Crystallography of Sinnerite

Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Cell Parameters:
a = 9.103(2) Å, b = 9.860(3) Å, c = 9.111(2) Å
α = 90.27(2)°, β = 109.53(2)°, γ = 107.58(2)°
Ratio:
a:b:c = 0.923 : 1 : 0.924
Unit Cell Volume:
V 729.6 ų
Z:
2
Morphology:
Twinning:
Crystals are twinned complexly; principal laws are twin planes {010} and {110}.
X-Ray Powder Diffraction Data:
d-spacingIntensity
3.34 (20)
3.02 (100)
1.852 (80)
1.581 (70)
1.556 (20)
1.312 (20)
1.205 (30)

Type Occurrence of Sinnerite

Relationship of Sinnerite to other Species

2.GC.05HatchiteAgPbTlAs2S5
2.GC.05WallisiteCuPbTlAs2S5
2.GC.15WatanabeiteCu4As2S5
2.GC.20SimoniteTlHgAs3S6
2.GC.25QuadratiteAg(Cd,Pb)AsS3
2.GC.25ManganoquadratiteAgMnAsS3
2.GC.30SmithiteAgAsS2
2.GC.35TrechmanniteAgAsS2
2.GC.40aAleksitePbBi2Te2S2
2.GC.40bKochkaritePbBi4Te7
2.GC.40cPoubaitePbBi2(Se,Te,S)4
2.GC.40cRucklidgeitePbBi2Te4
2.GC.40eBabkinitePb2Bi2(S,Se)3
2.GC.40dSaddlebackitePb2Bi2Te2S3
2.GC.45TvalchrelidzeiteHg3SbAsS3
2.GC.50MutnovskitePb2AsS3I
5.1.2TennantiteCu12As4S13
5.1.4ChalcostibiteCuSbS2
5.1.5TetrahedriteCu12Sb4S13
5.1.6GoldfielditeCu10Te4S13
5.1.7EmplectiteCuBiS2
5.1.8CuprobismutiteCu8AgBi13S24
5.1.9WitticheniteCu3BiS3
5.1.10HodrušiteCu4Bi6S11
5.1.11GirauditeCu6[Cu4(Fe,Zn)2]As4Se13
5.1.11PermingeatiteCu3SbSe4

Other Names for Sinnerite

Name in Other Languages:

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 Sinnerite

Reference List:
American Mineralogist (1972) 57: 824-834.

American Mineralogist (1975) 60: 998-1012.

Schweizerische mineralogische und petrographische Mitteilungen 44: 439-454.

Harlov, D.E. (1999) Thermochemistry of Ag-Cu exchange equilibria between proustite, sinnerite, and pearceite; constraints on Ag-Cu and As-Sb mixing in pyrargyrite-proustite. European Journal of Mineralogy, 11, 709-719.

Bindi, L., Makovicky, E., Nestola, F., De Battisti, L. (2013): Sinnerite, Cu6As4S9, from the Lengenbach quarry, Binn Valley, Switzerland: description and re-investigation of the crystal structure. Canadian Mineralogist, 51, 851-860.

Internet Links for Sinnerite

mindat.org URL:
https://www.mindat.org/min-3675.html
Please feel free to link to this page.

Localities for Sinnerite

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.
Finland
 
  • Southwestern Finland Region
    • Pargas (Parainen)
Hangala Leake S. 1987 The early proterozoic Zn-Pb-Cu massive sulfide deposit at Attu, SW Finland Geological Survey of Finland Bulletin 341 61s
Switzerland (TL)
 
  • Wallis (Valais)
    • Binn Valley
      • Fäld (Imfeld; Im Feld; Feld)
Schweiz.Min.Petr.Mitt.(1964) 44, 439-454; http://fglb.clubdesk.ch/clubdesk/www [untwinned sinnerite]
Mineral and/or Locality  
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