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Chabournéite

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Formula:
Tl4Pb2(Sb,As)20S34
Also given as Tl21-xPb2x(Sb,As)91-xS147 (x = 0-17.5).
System:
Triclinic
Colour:
Black
Hardness:
3 - 3½
Name:
For Chabournéou Glacier, near the type locality.
Homeotype of protochabournéite.

Sb-dominant analogue of dalnegroite. Compare 'UM1982-10-S:AsSbTl'.

Structurally related to the Sartorite Group.


Classification of Chabournéite

Approved
Approval Year:
1976
2.HC.05e

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
C : With only Pb
3.8.12.1

3 : SULFOSALTS
8 : 1 < ø < 2
5.5.20

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

Occurrences of Chabournéite

Type Occurrence of Chabournéite

Physical Properties of Chabournéite

Greasy, Sub-Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Black
Streak:
Red, brown
Hardness (Mohs):
3 - 3½
Hardness (Vickers):
VHN25=78 - 124 kg/mm2
Fracture:
Conchoidal
Density:
5.104 g/cm3 (Measured)    5.121 g/cm3 (Calculated)

Crystallography of Chabournéite

Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Cell Parameters:
a = 16.346(5) Å, b = 42.602(10) Å, c = 8.543(3) Å
α = 95.86(3)°, β = 86.91(3)°, γ = 96.88(3)°
Ratio:
a:b:c = 0.384 : 1 : 0.201
Unit Cell Volume:
V 5,870.17 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Crystals to 1mm
Comment:
Bonaccorsi et al. (2010) give P-1 and different cell: a 8.150(2), b 8.716(2), c 21.579(4) Å, α 85.18(1)°, β 96.94(1)°, γ 88.60(1)°, V = 1515(1) Å3. This phase apparently later became protochabournéite.

Optical Data of Chabournéite

Type:
Anisotropic
Anisotropism:
Strong in bluish and greenish colors
Colour in reflected light:
White
Internal Reflections:
Red
Pleochroism:
Weak

Chemical Properties of Chabournéite

Formula:
Tl4Pb2(Sb,As)20S34

Also given as Tl21-xPb2x(Sb,As)91-xS147 (x = 0-17.5).
Elements listed in formula:

Relationship of Chabournéite to other Species

Structurally related to group(s):
Sartorite GroupA group of chemically and structurally very complex sulphosalts which are impossible to identify visually.
Common Associates:
2.HC.05bArgentobaumhaueriteAg1.5Pb22As33.5S72
2.HC.05bBaumhaueritePb12As16S36
2.HC.05dDufrénoysitePb2As2S5
2.HC.05aGuettarditePbSbAsS4
2.HC.05cLiveingitePb18.5As25S56
2.HC.05fParapierrotiteTlSb5S8
2.HC.05fPierrotiteTlSb3As2S8
2.HC.05dRathiteAg2Pb12-xTlx/2As18+x/2S40
2.HC.05aSartoritePbAs2S4
2.HC.05aTwinnitePbSb2S4
2.HC.05dVeenitePb2(Sb,As)2S5
2.HC.05gMarumoitePb8As10S23
2.HC.05eDalnegroiteTl4Pb2(As,Sb)20S34
2.HC.10aFülöppitePb3Sb8S15
2.HC.10cHeteromorphitePb7Sb8S19
2.HC.10bPlagionitePb5Sb8S17
2.HC.10dRayite(Ag,Tl)2Pb8Sb8S21
2.HC.10dSemseyitePb9Sb8S21
2.HC.15BoulangeritePb5Sb4S11
2.HC.15FalkmanitePb3Sb2S6
2.HC.20RobinsonitePb4Sb6S13
2.HC.25MoëloitePb6Sb6S17
2.HC.30DadsonitePb23Sb25S60Cl
2.HC.35OwyheeiteAg3Pb10Sb11S28
2.HC.35ZoubekiteAgPb4Sb4S10
2.HC.40ParasterryiteAg4Pb20Sb14As10S58
5.5.1LoránditeTlAsS2
5.5.2EllisiteTl3AsS3
5.5.3ImhofiteTl5.8As15.4S26
5.5.4SimoniteTlHgAs3S6
5.5.6ChristiteTlHgAsS3
5.5.6RouthieriteCuTlHg2As2S6
5.5.7HutchinsoniteTlPbAs5S9
5.5.8WallisiteCuPbTlAs2S5
5.5.9BernarditeTlAs5S8
5.5.10VrbaiteHg3Tl4As8Sb2S20
5.5.11RebuliteTl5Sb5As8S22
5.5.12GillulyiteTl2As7.5Sb0.3S13
5.5.13WeissbergiteTlSbS2
5.5.14Rohaite(Tl,Pb,K)2Cu8.7Sb2S4
5.5.15VaughaniteTlHgSb4S7
5.5.16Chalcothallite(Cu,Fe,Ag)6.3(Tl,K)2SbS4
5.5.17PierrotiteTlSb3As2S8
5.5.18ParapierrotiteTlSb5S8
5.5.19CriddleiteAg2Au3TlSb10S10

Other Names for Chabournéite

Name in Other Languages:
Simplified Chinese:硫砷锑铅铊矿

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 Chabournéite

Reference List:
Johan, Z., Mantienne, J., Picot, P. (1981): La chabournéite, un nouveau minéral thallifère. Bulletin de Minéralogie, 104, 10-15 (in French).

American Mineralogist: 64: 242.

Nagl, A. (1979): The crystal structure of a thallium sulfosalt, Tl8Pb4Sb21As19S68. Zeitschrift für Kristallographie, 150, 85-106.

Bonaccorsi, E., Biagioni, C., Moëlo, Y. & Orlandi, P. (2010): Chabournéite from Monte Arsiccio mine (Apuan Alps, Tuscany, Italy): occurrence and crystal structure. 20th General Meeting of the IMA (IMA2010), Budapest, Hungary, August 21-27, CD of Abstracts, p. 714.

Biagioni, C., Moëlo, Y., Favreau, G., Bourgoin, V., Boulliard, J.-C. (2015): Crystal structure of Pb-rich chabournéite from Jas Roux, France. Acta Crystallographica, B71, 81-88.

Internet Links for Chabournéite

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Localities for Chabournéite

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.
France (TL)
 
  • Provence-Alpes-Côte d'Azur
    • Hautes-Alpes
      • La Chapelle-en-Valgaudemar (La Chapelle-en-Valgaudémar)
Mem.Bur.Rech.Geol.Minière,(1977) 90, 1, 115; Bull.Minéral.(1981) 104, 10-15; Johan, Z. & Mantienne, J. (2000): Thallium-rich mineralization at Jas Roux, Hautes-Alpes, France: a complex epithermal, sediment-hosted, ore-forming system. J. Czech Geol. Soc. 45, 63-77.
Japan
 
  • Hokkaido
    • Abuta-gun
      • Takarada
Shimizu, M., Matsuyama, F. and Shimizu, M. (1999): Hutchinsonite, TlPb(As,Sb)5S9 chabournéite, Tl2Pb(Sb,As)10S17 and unnamed (Tl,Ag)2Pb6(As,Sb)16S31 from the Toya-Takarada mine, Hokkaido, Japan -Tl mineralisation in the Kuroko deposits. Resource Geology, Special Issue no. 20, 31-37.; American Mineralogist, Volume 67, pages 621-624, 1982
Switzerland
 
  • Wallis (Valais)
    • Binn Valley
      • Fäld (Imfeld; Im Feld; Feld)
EDXS P. Roth, 1st November 2015, XRD F. Nestola, 18th October 2016. Coll. P. Roth
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