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Vaughanite

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Formula:
TlHgSb
 
4
S
 
7
System:TriclinicHardness:3 - 3½
Name:Named after David John Vaughan (b. 1946), chair in mineralogy, University of Manchester (England).
This page provides mineralogical data about Vaughanite.

Classification of Vaughanite

IMA status:Approved 1987
Strunz 8th edition ID:2/E.13-80
Nickel-Strunz 10th (pending) edition ID:2.LA.20

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
L : Unclassified Sulfosalts
A : Without essential Pb
Dana 8th edition ID:3.8.15.1

3 : SULFOSALTS
8 : 1 < ø < 2
Hey's CIM Ref.:5.5.15

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

Type Locality:Hemlo gold deposit, Marathon, Thunder Bay District, Ontario, Canada
Year of Discovery:1989

Physical Properties of Vaughanite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Streak:Black
Hardness (Mohs):3 - 3½
Tenacity:Brittle

Crystallography of Vaughanite

Crystal System:Triclinic
Cell Parameters:a = 9.01Å, b = 13.22Å, c = 5.9Å
α = 93.27°, β = 95.05°, γ = 109.16°
Ratio:a:b:c = 0.682 : 1 : 0.446
Unit Cell Volume:V 658.49 ų (Calculated from Unit Cell)

Chemical Properties of Vaughanite

Formula:
TlHgSb
 
4
S
 
7
Essential elements:Hg, S, Sb, Tl
All elements listed in formula:Hg, S, Sb, Tl

Relationship of Vaughanite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.LA.10Dervillite
Ag
 
2
AsS
 
2
2.LA.15Daomanite
CuPtAsS
 
2
2.LA.25Criddleite
TlAg
 
2
Au
 
3
Sb
 
10
S
 
10
2.LA.30Fettelite
[Ag
 
6
As
 
2
S
 
7
][Ag
 
10
HgAs
 
2
S
 
8
]
2.LA.35Chaméanite
(Cu,Fe)
 
4
As(Se,S)
 
4
2.LA.40Arcubisite
Ag
 
6
CuBiS
 
4
2.LA.45Mgriite
Cu
 
3
AsSe
 
3
2.LA.50Benleonardite
Ag
 
8
(Sb,As)Te
 
2
S
 
3
2.LA.55Tsnigriite
Ag
 
9
SbTe
 
3
(S,Se)
 
3
2.LA.60Borovskite
Pd
 
3
SbTe
 
4
2.LA.65Jonassonite
AuBi
 
5
S
 
4
Related Minerals - Hey's Index Grouping:

- +
5.5.1Lorándite
TlAsS
 
2
5.5.2Ellisite
Tl
 
3
AsS
 
3
5.5.3Imhofite
Tl
 
6
CuAs
 
16
S
 
40
5.5.4Simonite
TlHgAs
 
3
S
 
6
5.5.6Christite
TlHgAsS
 
3
5.5.6Routhierite
Tl(Cu,Ag)(Hg,Zn)
 
2
(As,Sb)
 
2
S
 
6
5.5.7Hutchinsonite
(Tl,Pb)
 
2
As
 
5
S
 
9
5.5.8Wallisite
(Cu,Ag)TlPbAs
 
2
S
 
5
5.5.9Bernardite
Tl(As,Sb)
 
5
S
 
8
5.5.10Vrbaite
Tl
 
4
Hg
 
3
Sb
 
2
As
 
8
S
 
20
5.5.11Rebulite
Tl
 
5
Sb
 
5
As
 
8
S
 
22
5.5.12Gillulyite
Tl
 
2
(As,Sb)
 
8
S
 
13
5.5.13Weissbergite
TlSbS
 
2
5.5.14Rohaite
(Tl,Pb,K)
 
2
Cu
 
8.7
Sb
 
2
S
 
4
5.5.16Chalcothallite
Tl
 
2
(Cu,Fe)
 
6
SbS
 
4
5.5.17Pierrotite
Tl
 
2
Sb
 
6
As
 
4
S
 
16
5.5.18Parapierrotite
Tl(Sb,As)
 
5
S
 
8
5.5.19Criddleite
TlAg
 
2
Au
 
3
Sb
 
10
S
 
10
5.5.20Chabournéite
Tl
 
21-x
Pb
 
2x
(Sb,As)
 
91-x
S
 
147
 (x = 0-17.5)

Other Names for Vaughanite

Synonyms:
IMA1987-055
Other Languages:
German:Vaughanit
Simplified Chinese:硫锑汞铊矿
Spanish:Vaughanita

Other Information

Health Warning:Contains thallium and mercury - always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest.

References for Vaughanite

Reference List:

- +
Mineralogical Magazine (1989): 53: 79-83.

American Mineralogist (1990): 75: 710-711.

Internet Links for Vaughanite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Vaughanite details from Handbook of Mineralogy (PDF)
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    • Localities for Vaughanite

    The 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.
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    (TL) indicates type locality. ? 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.
    Canada
     
    • Ontario
      • Thunder Bay District
        • Marathon
    		Handbook of Mineralogy
    Econ Geol (1997) 92:569-577
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