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Wallisite

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Formula:
CuPbTlAs2S5
System:
Triclinic
Colour:
Lead-gray
Lustre:
Metallic
Name:
Named after its discovery locality the Lengenbach quarry, Binntal, Wallis, Switzerland.
Isostructural with:

Classification of Wallisite

Approved
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 Wallisite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Lead-gray

Chemical Properties of Wallisite

IMA Formula:
CuPbTlAs2S5
Elements listed in formula:

Crystallography of Wallisite

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 Volume:
V 456.19 ų (Calculated from Unit Cell)

Type Occurrence of Wallisite

Relationship of Wallisite to other Species

Series:
Forms a series with Hatchite (see here)
2.GC.05HatchiteAgPbTlAs2S5
2.GC.10SinneriteCu6As4S9
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
5.5.1LoránditeTlAsS2
5.5.2EllisiteTl3AsS3
5.5.3ImhofiteTl5.8As15.4S26
5.5.4SimoniteTlHgAs3S6
5.5.6ChristiteTlHgAsS3
5.5.6RouthieriteCuTlHg2As2S6
5.5.7HutchinsoniteTlPbAs5S9
5.5.9BernarditeTlAs5S8
5.5.10VrbaiteHg3Tl4As8Sb2S20
5.5.11RebuliteTl5Sb5As8S22
5.5.12GillulyiteTl2As7.5Sb0.3S13
5.5.13WeissbergiteTlSbS2
5.5.14Rohaite(Tl,Pb,K)2Cu8.7Sb2S4
5.5.15VaughaniteTlHgSb4S7
5.5.16Chalcothallite(Cu,Fe,Ag)6.3(Tl,K)2SbS4
5.5.17PierrotiteTlSb3As2S8
5.5.18ParapierrotiteTlSb5S8
5.5.19CriddleiteAg2Au3TlSb10S10
5.5.20ChabournéiteTl4Pb2(Sb,As)20S34

Other Names for Wallisite

Name in Other Languages:
German:Wallisit
Simplified Chinese:铜红铊铅矿
Spanish:Wallisita

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 Wallisite

Reference List:
Eclogae Geol. Helv. (1965), 58, 403-406.

Zeitschrift für Kristallographie: 127: 349-365.

American Mineralogist (1966): 51: 532.

American Mineralogist (1969): 54: 1497.

Internet Links for Wallisite

mindat.org URL:
https://www.mindat.org/min-4236.html
Please feel free to link to this page.

Localities for Wallisite

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)
Eclogae Geol.Helv.(1965) 58, 403-406
Mineral and/or Locality  
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