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Criddleite

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Dr Alan J Criddle (1944-2002)
Formula:
TlAg2Au3Sb10S10
System:
Monoclinic
Colour:
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

Approved 1987
2.LA.25

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
L : Unclassified Sulfosalts
A : Without essential Pb
3.9.1.1

3 : SULFOSALTS
9 : ø = 1
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

Place of Conservation of Type Material:
British Museum Natural History
Geological Setting of Type Material:
Primary hydrothermal mineral

Physical Properties of Criddleite

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

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:
TlAg2Au3Sb10S10
Essential elements:
All elements listed in formula:

Relationship of Criddleite to other Species

2.LA.10DervilliteAg2AsS2
2.LA.15DaomaniteCuPtAsS2
2.LA.20VaughaniteTlHgSb4S7
2.LA.30Fettelite[Ag6As2S7][Ag10HgAs2S8]
2.LA.35Chaméanite(Cu,Fe)4As(Se,S)4
2.LA.40ArcubisiteAg6CuBiS4
2.LA.45MgriiteCu3AsSe3
2.LA.50BenleonarditeAg8(Sb,As)Te2S3
2.LA.55TsnigriiteAg9SbTe3(S,Se)3
2.LA.60BorovskitePd3SbTe4
2.LA.65JonassoniteAuBi5S4
5.5.1LoránditeTlAsS2
5.5.2EllisiteTl3AsS3
5.5.3ImhofiteTl5.8As15.4S26
5.5.4SimoniteTlHgAs3S6
5.5.6ChristiteTlHgAsS3
5.5.6RouthieriteTl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6
5.5.7HutchinsoniteTlPbAs5S9
5.5.8Wallisite(Cu,Ag)TlPbAs2S5
5.5.9BernarditeTl(As,Sb)5S8
5.5.10VrbaiteTl4Hg3Sb2As8S20
5.5.11RebuliteTl5Sb5As8S22
5.5.12GillulyiteTl2(As,Sb)8S13
5.5.13WeissbergiteTlSbS2
5.5.14Rohaite(Tl,Pb,K)2Cu8.7Sb2S4
5.5.15VaughaniteTlHgSb4S7
5.5.16ChalcothalliteTl2(Cu,Fe)6SbS4
5.5.17PierrotiteTl2Sb6As4S16
5.5.18ParapierrotiteTl(Sb,As)5S8
5.5.20ChabournéiteTl21-xPb2x(Sb,As)91-xS147 (x = 0-17.5)

Other Names for Criddleite

Name in Other Languages:
German:Criddleit
Simplified Chinese:硫锑金银铊矿
Spanish:Criddleita

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 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

Localities for Criddleite

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.
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
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