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Weissbergite

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Formula:
TlSbS2
Colour:
Steel-gray
Lustre:
Metallic
Hardness:
Specific Gravity:
5.79
Crystal System:
Triclinic
Name:
Named after Byron G. Weissberg (b. 1930), geologist and mineralogist, Department of Scientific and Industrial Research (New Zealand).
Chemically, the Sb analogue of (monoclinic) lorándite.


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Classification of WeissbergiteHide

Approved
Approval Year:
1975
2.HD.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
D : With Tl
3.7.7.1

3 : SULFOSALTS
7 : ø = 2
5.5.13

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

Physical Properties of WeissbergiteHide

Metallic
Transparency:
Opaque
Colour:
Steel-gray
Streak:
Dark gray
Hardness:
1½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
Four different cleavages: one perfect, two very good, one good.
Density:
5.79 g/cm3 (Measured)    6.22 g/cm3 (Calculated)

Optical Data of WeissbergiteHide

Type:
Anisotropic
Anisotropism:
Strong
Reflectivity:
nmR= = 35.0 - 36.8 (546 nm%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 0%.

Chemical Properties of WeissbergiteHide

Formula:
TlSbS2

Crystallography of WeissbergiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 6.123 Å, b = 6.293 Å, c = 11.838 Å
α = 101.34°, β = 98.39°, γ = 103.21°
Ratio:
a:b:c = 0.973 : 1 : 1.881
Unit Cell V:
426.61 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Frequently anhedral granular.
Comment:
Originally assumed to have space group P1 (no. 1).

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.75 (10)
3.71 (10)
3.65 (10)
3.58 (10)
2.97 (100)
2.84 (10)
2.35 (10)
1.49 (10)
Comments:
ICDD 29-1331 (synthetic)

Type Occurrence of WeissbergiteHide

Geological Setting of Type Material:
Hydrothermal deposits

Synonyms of WeissbergiteHide

Other Language Names for WeissbergiteHide

Simplified Chinese:维硫锑铊矿
Spanish:Weissbergita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Parapierrotite6 photos of Weissbergite associated with Parapierrotite on mindat.org.
Chalcedony5 photos of Weissbergite associated with Chalcedony on mindat.org.
Kermesite3 photos of Weissbergite associated with Kermesite on mindat.org.
2 photos of Weissbergite associated with on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.HD.05LoránditeTlAsS2Mon. 2/m : P21/b
2.HD.15ChristiteTlHgAsS3Mon. 2/m
2.HD.20JankovićiteTl5Sb9(As,Sb)4S22Tric. 1 : P1
2.HD.25RebuliteTl5Sb5As8S22Mon. 2/m : P21/b
2.HD.30ImhofiteTl5.8As15.4S26Mon. 2/m
2.HD.35EdenharteritePbTlAs3S6Orth.
2.HD.40JentschiteTlPbAs2SbS6Mon.
2.HD.45HutchinsoniteTlPbAs5S9Orth.
2.HD.50BernarditeTlAs5S8Mon. 2/m : P21/b
2.HD.55SicheriteTlAg2(As,Sb)3S6Orth.
2.HD.60GabrieliteTl6Ag3Cu6(As,Sb)9S21Tric. 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.
5.5.8Wallisite(Cu,Ag)TlPbAs2S5Tric.
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.
5.5.14Rohaite(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:
Contains thallium - always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest.

References for WeissbergiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1977): 62: 720-724.
Dickson, F. W. (1978): Weissbergite, TlSbS2, a new mineral from the Carlin gold deposit, Nevada. American Mineralogist, 63, 720-724.
Rey, N, Jumas, J. C., Olivier-Fourcade, J., and Philippot, E. (1983): Sur les composés III-V-VI: Etude structurale du disulfure d’antimoine et de thallium. Acta Crystallographica, 39, 971-974.
Mineralogical Record (1993): 24: 446.
Kharbish, S. (2011): Raman spectrosopic investigations of some Tl-sulfosalt minerals containing pyramidal (As,Sb)S3 groups. American Mineralogist, 96, 609-616.

Internet Links for WeissbergiteHide

Localities for WeissbergiteHide

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.
Republic of Macedonia
 
  • Kavadarci
    • Rožden (Rozhden; Roszdan)
Rieck, B. (1993): Famous mineral localities: Allchar, Macedonia, Mineralogical Record, 24 (6), 437-449; Boevl, B., Bermanec, V., Serafimovski, T., Lepitkoval, S., & Mikulcic, S. (2001). Allchar Mineral Assemblage. Geologica Macedonica, Vol. 15-16, p. 1-23 (2001-2002) Suppl
Switzerland
 
  • Wallis (Valais)
    • Binn Valley
      • Fäld (Imfeld; Im Feld; Feld)
Raber, T. and Roth, P. (2014) Weissbergit, ein Thallium-Antimon-Sulfosalz. Schweizer Strahler, 48 (4), 18-19. [EDX analyses by FGL T. Raber & P. Roth, May 2012 - Sep. 2013 on three different specimens, XRD analyses by Prof. Nestola, Padova, Italy, November 2012 (see also http://fglb.clubdesk.ch/clubdesk/www)]
USA (TL)
 
  • Nevada
    • Eureka Co.
      • Lynn District
        • Elko
Amer.Min.(1977) 62, 720-724; Min.Rec.:20:469.
  • Utah
    • Tooele Co.
      • Sheeprock Mts
        • Little Valley
King, N. R. (2014, October). THE MINERAL ASSEMBLAGE FROM LOOKOUT PASS AREA, SHEEPROCK MOUNTAINS, TOOELE CO., UTAH. In 2014 GSA Annual Meeting in Vancouver, British Columbia.
Mineral and/or Locality  
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