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Vaughanite

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About VaughaniteHide

04540670015143741494393.jpg
David J. Vaughan
Formula:
TlHgSb4S7
Colour:
Light gray
Lustre:
Metallic
Hardness:
3 - 3½
Specific Gravity:
5.56 (Calculated)
Crystal System:
Triclinic
Name:
Named in honor of David John Vaughan (b. 1946), chair in mineralogy, University of Manchester, England, for his many outstanding contributions to ore mineralogy and ore microscopy.
This page provides mineralogical data about Vaughanite.


Classification of VaughaniteHide

Approved
Approval Year:
1987
First Published:
1989
2.LA.20

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

3 : SULFOSALTS
8 : 1 < ø < 2
5.5.15

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

Physical Properties of VaughaniteHide

Metallic
Transparency:
Opaque
Colour:
Light gray
Streak:
Black
Hardness:
3 - 3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
Weak
Density:
5.56 g/cm3 (Calculated)

Optical Data of VaughaniteHide

Type:
Anisotropic
Anisotropism:
Moderate to strong
Bireflectance:
weak to moderate
Pleochroism:
Weak
Comments:
Slightly greenish grey to a slightly darker bluish grey
Comments:
When immersed in oil (ND 1.515), the bireflectance and reflectance pleochroism are enhanced.

Chemical Properties of VaughaniteHide

Formula:
TlHgSb4S7

Crystallography of VaughaniteHide

Crystal System:
Triclinic
Cell Parameters:
a = 9.01 Å, b = 13.22 Å, c = 5.9 Å
α = 93.27°, β = 95.05°, γ = 109.16°
Ratio:
a:b:c = 0.682 : 1 : 0.446
Unit Cell V:
659.46 ų
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.343 Å(30)
4.204 Å(100)
3.313 Å(60)
2.749 Å(40)
2.315 Å(30)
Comments:
Five strongest lines from type material

Type Occurrence of VaughaniteHide

General Appearance of Type Material:
Massive aggregates to 450 um.
Place of Conservation of Type Material:
British Museum of Natural History, London, UK, BM 1987,95, polished section E.1220.
National Mineral Collection, Geological Survey of Canada, Ottawa, Ontario, Canada, NMC 65497.
Reference:
Harris, D.C., Roberts, A.C., Criddle, A.J. (1989) Vaughanite (TlHgSb4S7), a new mineral from the Hemlo gold deposit, Hemlo, Ontario, Canada. Mineralogical Magazine: 53: 79-83.

Synonyms of VaughaniteHide

Other Language Names for VaughaniteHide

German:Vaughanit
Simplified Chinese:硫锑汞铊矿
Spanish:Vaughanita

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Vaughanite associated with PääkköneniteSb2AsS2
2 photos of Vaughanite associated with StibarsenAsSb
2 photos of Vaughanite associated with RealgarAs4S4

Related Minerals - Nickel-Strunz GroupingHide

2.LA.10DervilliteAg2AsS2Mon. 2/m : P2/b
2.LA.15DaomaniteCuPtAsS2Orth.
2.LA.25CriddleiteTlAg2Au3Sb10S10Mon.
2.LA.30Fettelite[Ag6As2S7][Ag10HgAs2S8] Mon. 2 : B2
2.LA.35Chaméanite(Cu,Fe)4As(Se,S)4Iso.
2.LA.40ArcubisiteAg6CuBiS4
2.LA.45MgriiteCu3AsSe3Iso. m3m (4/m 3 2/m)
2.LA.50Benleonardite[Ag6(Sb,As)2S6Te] [Ag9Cu(S,Te)2Te2]Trig. 3m (3 2/m) : P3m1
2.LA.55TsnigriiteAg9SbTe3S3Mon.
2.LA.60BorovskitePd3SbTe4Iso.
2.LA.65JonassoniteAuBi5S4Mon.

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. mmm (2/m 2/m 2/m) : Pbca
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
5.5.12GillulyiteTl2As7.5Sb0.3S13Mon. 2/m
5.5.13WeissbergiteTlSbS2Tric. 1 : P1
5.5.14Rohaite(Tl,Pb,K)2Cu8.7Sb2S4Orth.
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 and mercury - always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest.

References for VaughaniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Harris, D.C., Roberts, A.C., Criddle, A.J. (1989) Vaughanite (TlHgSb4S7), a new mineral from the Hemlo gold deposit, Hemlo, Ontario, Canada. Mineralogical Magazine: 53: 79-83.
Harris, D.C. (1989) The mineralogy and geochemistry of the Hemlo gold deposit, Ontario. Geological Survey of Canada, Economic Geology Report 38.
Jambor, J.L., Vanko, D.A. (1990) New mineral names. American Mineralogist: 75: 706-713.

Internet Links for VaughaniteHide

Localities for VaughaniteHide

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.
Canada
 
  • Ontario
    • Thunder Bay District
      • Bomby Township
HARRIS, D.C., ROBERTS, A.C. & CRIDDLE, A.J. (1989): Vaughanite (TlHgSb4S7), a new mineral from the Hemlo gold deposit, Hemlo, Ontario, Canada. Mineralogical Magazine 53, 79-83. HARRIS, D.C. (1989): The mineralogy and geochemistry of the Hemlo gold deposit, Ontario. Geological Survey of Canada, Economic Geology Report 38. ; Powell, W. G., & Pattison, D. R. (1997). An exsolution origin for low-temperature sulfides at the Hemlo gold deposit, Ontario, Canada. Economic Geology, 92(5), 569-577.
HARRIS, D.C., ROBERTS, A.C. & CRIDDLE, A.J. (1989): Vaughanite (TlHgSb4S7), a new mineral from the Hemlo gold deposit, Hemlo, Ontario, Canada. Mineralogical Magazine 53, 79-83. HARRIS, D.C. (1989): The mineralogy and geochemistry of the Hemlo gold deposit, Ontario. Geological Survey of Canada, Economic Geology Report 38.
 
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