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Wallisite

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Formula:
(Cu,Ag)TlPbAs2S5
Colour:
Lead-gray
Lustre:
Metallic
Specific Gravity:
5.71 (Calculated)
Crystal System:
Triclinic
Name:
Named after its discovery locality the Lengenbach quarry, Binntal, Wallis, Switzerland.
Isostructural with:
Hide all sections | Show all sections

Classification of WallisiteHide

Approved
First Published:
1965
2.GC.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
C : Poly-sulfarsenites
3.5.8.1

3 : SULFOSALTS
5 : 2.5 < ø < 3
5.5.8

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

Physical Properties of WallisiteHide

Metallic
Transparency:
Opaque
Colour:
Lead-gray
Density:
5.71 g/cm3 (Calculated)

Chemical Properties of WallisiteHide

Formula:
(Cu,Ag)TlPbAs2S5
IMA Formula:
CuPbTlAs2S5

Crystallography of WallisiteHide

Crystal System:
Triclinic
Cell Parameters:
a = 7.98 Å, b = 8.97 Å, c = 7.76 Å
α = 106.11°, β = 114.48°, γ = 65.48°
Ratio:
a:b:c = 0.89 : 1 : 0.865
Unit Cell V:
456.19 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.339 (100)
2.834 (50)
2.879 (30)
2.667 (30)
4.555 (25)
4.233 (25)
2.985 (25)

Type Occurrence of WallisiteHide

Place of Conservation of Type Material:
Mineralogical-Petrographical Institute, University of Bern, Bern, Switzerland, L2533-63.
Associated Minerals at Type Locality:

Other Language Names for WallisiteHide

German:Wallisit
Simplified Chinese:铜红铊铅矿
Spanish:Wallisita

Relationship of Wallisite to other SpeciesHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Realgar4 photos of Wallisite associated with Realgar on mindat.org.
Hatchite3 photos of Wallisite associated with Hatchite on mindat.org.
Trechmannite2 photos of Wallisite associated with Trechmannite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.GC.05HatchiteAgTlPbAs2S5Tric. 1 : P1
2.GC.10SinneriteCu6As4S9Tric. 1 : P1
2.GC.15WatanabeiteCu4(As,Sb)2S5Orth.
2.GC.20SimoniteTlHgAs3S6Mon. 2/m
2.GC.25QuadratiteAg(Cd,Pb)AsS3Tet.
2.GC.25ManganoquadratiteAgMnAsS3Tet. 4 2 2 : P43 2 2
2.GC.30SmithiteAgAsS2Mon. 2/m
2.GC.35TrechmanniteAgAsS2Trig.
2.GC.40aAleksitePbBi2Te2S2Trig.
2.GC.40bKochkaritePbBi4Te7Trig.
2.GC.40cPoubaitePbBi2(Se,Te,S)4Trig.
2.GC.40cRucklidgeitePbBi2Te4Trig.
2.GC.40eBabkinitePb2Bi2(S,Se)3Trig.
2.GC.40dSaddlebackitePb2Bi2Te2S3Hex.
2.GC.45TvalchrelidzeiteHg3SbAsS3Mon. 2/m
2.GC.50MutnovskitePb4As2S6IClOrth. mmm (2/m 2/m 2/m) : Pnma

Related Minerals - Dana Grouping (8th Ed.)Hide

3.5.8.2HatchiteAgTlPbAs2S5Tric. 1 : P1

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

5.5.1LoránditeTlAsS2Mon. 2/m : P21/b
5.5.2EllisiteTl3AsS3Trig. 3m : R3m
5.5.3ImhofiteTl5.8As15.4S26Mon. 2/m
5.5.4SimoniteTlHgAs3S6Mon. 2/m
5.5.6ChristiteTlHgAsS3Mon. 2/m
5.5.6RouthieriteTl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6Tet. 4 2m : I4 2m
5.5.7HutchinsoniteTlPbAs5S9Orth.
5.5.9BernarditeTlAs5S8Mon. 2/m : P21/b
5.5.10VrbaiteHg3Tl4As8Sb2S20Orth. mmm (2/m 2/m 2/m) : Cmca
5.5.11RebuliteTl5Sb5As8S22Mon. 2/m : P21/b
5.5.12GillulyiteTl2(As,Sb)8S13Mon.
5.5.13WeissbergiteTlSbS2Tric. 1 : P1
5.5.14Rohaite(Tl,Pb,K)2Cu8.7Sb2S4Orth.
5.5.15VaughaniteTlHgSb4S7Tric.
5.5.16ChalcothalliteTl2(Cu,Fe)6SbS4Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
5.5.17PierrotiteTl2(Sb,As)10S16Orth. mm2 : Pna21
5.5.18ParapierrotiteTlSb5S8Mon. m
5.5.19CriddleiteTlAg2Au3Sb10S10Mon.
5.5.20ChabournéiteTl4Pb2(Sb,As)20S34Tric. 1 : P1

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 WallisiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Nowacki, W. (1965) Über einige Mineralfunde aus dem Lengenbach (Binnatal, Kt. Wallis). Eclogae Geologicae Helveticae: 58: 403-406.
Fleischer, M. (1966) New mineral names. American Mineralogist: 51: 529-534.
Takéuchi, Y., Ohmasa, M. (1968) The crystal structure of wallisite, PbTlCuAs2S5, the Cu analogue of hatchite PbTlAgAs2S5. Zeitschrift für Kristallographie: 127: 349-365.
Fleischer, M. (1969) New mineral names. American Mineralogist: 54: 1495-1499.
International Mineralogical Association (1971) International Mineralogical Association: Commission on new minerals and mineral names. Mineralogical Magazine: 38: 102-105.
Boiocchi, M., Callegari, A. (2003) Crystal structure refinement of a wallisite- hatchite solid solution. Neues Jahrbuch für Mineralogie, Monatshefte: 2003: 396-406.
Roth, P. (2007) Wallisite. in Minerals first discovered in Switzerland and minerals named after Swiss individuals, Kristallografik Verlag (Achberg Germany): 154-155.

Internet Links for WallisiteHide

Localities for WallisiteHide

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.
Switzerland (TL)
 
  • Wallis (Valais)
    • Binn Valley
      • Fäld (Imfeld; Im Feld; Feld)
Eclogae Geol.Helv.(1965) 58, 403-406
Mineral and/or Locality  
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