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Criddleite

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Formula:
TlAg
 
2
Au
 
3
Sb
 
10
S
 
10
System:MonoclinicColour:Gray-blue
Hardness:3 - 3½
Name:
For Dr Alan J Criddle (1944-2002), mineralogist at the British Museum
This page provides mineralogical data about Criddleite.

Classification of Criddleite

IMA status:Approved 1987
Strunz 8th edition ID:2/B.07-30
Strunz 9th edition ID:2.00.X
Nickel-Strunz 10th (pending) edition ID:2.LA.25

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:3.9.1.1

3 : SULFOSALTS
9 : ø = 1
Hey's CIM Ref.:5.5.19

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 Criddleite

Co-type Localities:Golden Giant Mine, Hemlo gold deposit, Bomby Township, Thunder Bay District, Ontario, Canada
Williams Mine (Page Williams Mine), Hemlo gold deposit, Bomby Township, Thunder Bay District, Ontario, Canada
Place of Conservation of Type Material:British Museum Natural History
Geological Setting of type material:Primary hydrothermal mineral

Physical Properties of Criddleite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Gray-blue
Streak:Black
Hardness (Mohs):3 - 3½
Hardness (Vickers):VHN25=94 - 129 kg/mm2
Density (measured):6.86(7) g/cm3
Density (calculated):6.57 g/cm3

Crystallography of Criddleite

Crystal System:Monoclinic
Cell Parameters:a = 20.01Å, b = 8.07Å, c = 7.83Å
β = 92.01°
Ratio:a:b:c = 2.48 : 1 : 0.97
Unit Cell Volume:V 1,263.62 ų (Calculated from Unit Cell)
Morphology:Lath like grains to 70 microns.
Twinning:Common

Optical Data of Criddleite

Type:Anisotropic
Anisotropism:Distinct - from buff to slate gray
Colour in reflected light:Gray-blue
Pleochroism:Weak
Comments:From gray-blue to slightly greenish gray-blue

Chemical Properties of Criddleite

Formula:
TlAg
 
2
Au
 
3
Sb
 
10
S
 
10
Simplified for copy/paste:TlAg2Au3Sb10S10
Essential elements:Ag, Au, S, Sb, Tl
All elements listed in formula:Ag, Au, S, Sb, Tl

Relationship of Criddleite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.LA.10Dervillite
Ag
 
2
AsS
 
2
2.LA.15Daomanite
CuPtAsS
 
2
2.LA.20Vaughanite
TlHgSb
 
4
S
 
7
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
5.5.6Routhiérite
Tl(Cu,Ag)(Hg,Zn)
 
2
(As,Sb)
 
2
S
 
6
5.5.7Hutchinsonite
TlPbAs
 
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
5.5.15Vaughanite
TlHgSb
 
4
S
 
7
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
5.5.20Chabournéite
Tl
 
21-x
Pb
 
2x
(Sb,As)
 
91-x
S
 
147
(x = 0-17.5)

Other Names for Criddleite

Synonyms:
IMA1987-037
Other Languages:
German:Criddleit
Simplified Chinese:硫锑金银铊矿
Spanish:Criddleita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Criddleite

Reference List:

- +
COOK, N.J., WOOD, S.A., GEBERT, W., BERNHARDT, H.J. & MEDENBACH, O. (1994): Crerarite, a new Pt-Bi-Pb-S mineral from the Cu-Ni-PGE deposit at Lac Sheen, Abitibi-Témiscamingue, Québec, Canada. Neues Jahrbuch für Mineralogie, Monatshefte, 567-575.

Internet Links for Criddleite

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

    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.
    (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
        • Bomby Township
    HARRIS, D.C., ROBERTS, A.C., LAFLAMME, J.H.G. & STANLEY, C.J. (1988): Criddleite, TlAg2Au3Sb10S10, a new gold-bearing mineral from Hemlo, Ontario, Canada. Mineralogical Magazine 52, 691-697. HARRIS, D.C. (1989): The mineralogy and geochemistry of the Hemlo gold deposit, Ontario. Geological Survey of Canada, Economic Geology Report 38.
    HARRIS, D.C., ROBERTS, A.C., LAFLAMME, J.H.G. & STANLEY, C.J. (1988): Criddleite, TlAg2Au3Sb10S10, a new gold-bearing mineral from Hemlo, Ontario, Canada. Mineralogical Magazine 52, 691-697. HARRIS, D.C. (1989): The mineralogy and geochemistry of the Hemlo gold deposit, Ontario. Geological Survey of Canada, Economic Geology Report 38.
    HARRIS, D.C., ROBERTS, A.C., LAFLAMME, J.H.G. & STANLEY, C.J. (1988): Criddleite, TlAg2Au3Sb10S10, a new gold-bearing mineral from Hemlo, Ontario, Canada. Mineralogical Magazine 52, 691-697. HARRIS, D.C. (1989): The mineralogy and geochemistry of the Hemlo gold deposit, Ontario. Geological Survey of Canada, Economic Geology Report 38.
    France
     
    • Limousin
      • Creuse
    ontariominerals.com
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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