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Chabournéite

A valid IMA mineral species
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01021700017271922031896.jpg
Chabournéite

Jas Roux, La Chapelle-en-Valgaudemar, Gap, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
04948190017271922059775.jpg
Chabournéite, etc.

Jas Roux, La Chapelle-en-Valgaudemar, Gap, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
09099250017271922083005.jpg
Chabournéite

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
08301480017864941717301.jpg
Chabournéite

Jas Roux, La Chapelle-en-Valgaudemar, Gap, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
04948190017271922059775.jpg
Chabournéite, etc.

Jas Roux, La Chapelle-en-Valgaudemar, Gap, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
09099250017271922083005.jpg
Chabournéite

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
01021700017271922031896.jpg
Chabournéite

Jas Roux, La Chapelle-en-Valgaudemar, Gap, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
04948190017271922059775.jpg
Chabournéite, etc.

Jas Roux, La Chapelle-en-Valgaudemar, Gap, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
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About ChabournéiteHide

Formula:
AgzTl8-x-zPb4+2xSb40-x-yAsyS68 with 0.00 < x < 0.40(9), 16.15(3)< y < 19.11(10), 0.04(4) < z < 0.11(6)
Redefined in 2021 by IMA Proposal 20-F on chabournéite group.
Previously given as Tl4Pb2(Sb,As)20S34.
Also previously given as Tl21-xPb2x(Sb,As)91-xS147 (x = 0-17.5).
Colour:
Black
Lustre:
Greasy, Sub-Metallic
Hardness:
3 - 3½
Specific Gravity:
5.104
Crystal System:
Triclinic
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.

A Pb-free end-member, belonging to the chabournéite homeotypic group, of the Tl2.36Sb5.98As4.59S17 formula, is also triclinic, but with P-1 space group, as studied by Makovicky et al. (2021).


Name EncodingHide

ASCII-7:
Chabourneite

Unique IdentifiersHide

Mindat ID:
957
Long-form identifier:
mindat:1:1:957:5

IMA Classification of ChabournéiteHide

IMA status:
Approved
IMA status notes:
Redefined by the IMA
IMA Formula:
Ag1+zTl1+8-x-zPb2+4+2xSb3+40-x-yAs3+yS2-68 (0.00 ≤ x ≤ 0.40, 16.15 ≤ y ≤ 19.11, 0.04 ≤ z ≤ 0.11)
Approval year:
1976
First published:
1981
Approval history:
Redefined formula IMA Proposal 20-F: Miyawaki et al. (2021).

Classification of ChabournéiteHide

Strunz-mindat (2026):
2.HD.05e

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
D : With Tl
Dana 8th ed.:
3.8.12.1

3 : SULFOSALTS
8 : 1 < ø < 2
Hey's CIM Ref.:
5.5.20

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
ChbIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of ChabournéiteHide

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

Optical Data of ChabournéiteHide

Anisotropism:
Strong in bluish and greenish colors
Reflectivity:
WavelengthR1 (%)R2 (%)
400nm33.8%39.7%
420nm33.5%39.1%
440nm33.2%38.6%
460nm32.8%37.9%
480nm32.3%37.2%
500nm32.0%36.6%
520nm31.7%36.1%
540nm31.4%35.6%
560nm31.1%34.9%
580nm30.7%34.3%
600nm30.3%33.7%
620nm29.7%33.0%
640nm29.1%32.2%
660nm28.5%31.6%
680nm27.9%30.9%
700nm27.3%30.3%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 39.7%.
R1 shown in black, R2 shown in red
Colour in reflected light:
White
Internal Reflections:
Red
Pleochroism:
Weak

Chemistry of ChabournéiteHide

Mindat Formula:
AgzTl8-x-zPb4+2xSb40-x-yAsyS68 with 0.00 < x < 0.40(9), 16.15(3)< y < 19.11(10), 0.04(4) < z < 0.11(6)

Redefined in 2021 by IMA Proposal 20-F on chabournéite group.
Previously given as Tl4Pb2(Sb,As)20S34.
Also previously given as Tl21-xPb2x(Sb,As)91-xS147 (x = 0-17.5).
Elements listed:
Ag, As, Pb, S, Sb, Tl - search for minerals with similar chemistry

Crystallography of ChabournéiteHide

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 V:
5,870.17 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Crystals to 1 mm.
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 later became protochabournéite. For Pb-rich chabournéite (empirical EPMA-derived formula: Ag0.04(1)Tl2.15(2)Pb0.64(1)Sb5.12(1)As5.05(1)S17.32(5)), Biagioni et al. (2015) give a = 8.5197(4), b = 42.461(2), c = 16.293(8) Å, α = 83.351(2), β = 90.958(2), γ = 84.275(2)°, V = 5823(3) Å3.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.196 Å(50)
4.067 Å(60)
3.928 Å(70)
3.573 Å(100)
3.485 Å(50)
3.358 Å(70)
2.853 Å(70)
2.808 Å(80)
2.754 Å(50)
2.709 Å(70)
2.345 Å(70)
2.135 Å(90)
1.810 Å(50)
Comments:
Jas Roux, Provence-Alpes-Côte d'Azur, France. Data from the type description.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])
Geological Setting:
Hydrothermal veins in dolomites.

Type Occurrence of ChabournéiteHide

Type Locality:
ⓘ Jas Roux, La Chapelle-en-Valgaudemar, Gap, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
General Appearance of Type Material:
Very imperfect millimetric crystals. Aggregates, intimately associated with realgar and pierrotite reaching centimetric dimensions.
Place of Conservation of Type Material:
National School of Mines, Paris, France.
Geological Setting of Type Material:
Fracture fillings in dolomitic limestones.
Associated Minerals at Type Locality:
LaffittitePierrotiteRealgarRouthieriteSmithite
Stibnite

Synonyms of ChabournéiteHide

Other Language Names for ChabournéiteHide

Relationship of Chabournéite to other SpeciesHide

Member of:
Chabournéite Group
Other Members of Chabournéite Group:
Dalnegroite(Tl4Pb2)(As12Sb8)S34Tric. 1 : P1
DewititeAgzTl10-x-zPb2xSb42-x-yAsyS68Tric. 1 : P1
ProtochabournéiteTl4-xPb2+2xSb20-x-yAsyS34 with 0.02(2) <= x <= 0.34(2), 5.71(9) <= y <= 6.69(9)Tric. 1 : P1
ShimeniteTl5Sb21-yAsyS34Tric. 1 : P1
VallouiseiteAg3Tl21.5PbSb63As41.5S170Tric. 1 : P1
Structurally related to group(s):
Sartorite GroupA group of chemically and structurally very complex sulphosalts which are impossible to identify visually.

Common AssociatesHide

Associations Based on Photo Data:
10 photos of Chabournéite associated with RealgarAs4S4
7 photos of Chabournéite associated with Wakabayashilite[(As,Sb)6S9][As4S5]
4 photos of Chabournéite associated with RouthieriteTl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6

Related Minerals - Strunz-mindat GroupingHide

2.HD.EnneasartoriteTl6Pb32As70S140Mon. 2/m : P21/b
2.HD.ShimeniteTl5Sb21-yAsyS34Tric. 1 : P1
2.HD.DewititeAgzTl10-x-zPb2xSb42-x-yAsyS68Tric. 1 : P1
2.HD.BuyniteTlPb14As17S40Mon. 2 : P21
2.HD.VallouiseiteAg3Tl21.5PbSb63As41.5S170Tric. 1 : P1
2.HD.GiuşcăiteAg2Tl4Pb4As20Sb2S40Mon. m
2.HD.BoscardiniteTlPb4(Sb7As2)S18Tric. 1 : P1
2.HD.GungeriteTlAs5Sb4S13Orth. mmm(2/m2/m2/m) : Pbcn
2.HD.05eDalnegroite(Tl4Pb2)(As12Sb8)S34Tric. 1 : P1
2.HD.05LoránditeTlAsS2Mon. 2/m : P21/b
2.HD.05WeissbergiteTlSbS2Tric. 1 : P1
2.HD.15ChristiteTlHgAsS3Orth. mmm(2/m2/m2/m) : Cmca
2.HD.15MarkwelchiteTlPbSbS3Mon. 2/m : P21/b
2.HD.15RichardsollyiteTlPbAsS3Mon. 2/m : P21/b
2.HD.20JankovićiteTl5Sb9(As,Sb)4S22Tric. 1 : P1
2.HD.25RebuliteTl5Sb5As8S22Mon. 2/m : P21/b
2.HD.30ImhofiteTl5.8As15.4S26Mon. 2/m
2.HD.35EdenharteritePbTlAs3S6Orth. mm2 : Fdd2
2.HD.40JentschiteTlPbAs2SbS6Mon. 2/m
2.HD.45ProtochabournéiteTl4-xPb2+2xSb20-x-yAsyS34 with 0.02(2) <= x <= 0.34(2), 5.71(9) <= y <= 6.69(9)Tric. 1 : P1
2.HD.45HutchinsoniteTlPbAs5S9Orth. mmm(2/m2/m2/m) : Pbca
2.HD.50BernarditeTlAs5S8Mon. 2/m : P21/b
2.HD.55SicheriteTlAg2(As,Sb)3S6Orth.
2.HD.55GeueriteAg2Tl4Pb4As22S40Mon. 2/m : P21/b
2.HD.60GabrieliteTl6Ag3Cu6(As,Sb)9S21Tric. 1 : P1
2.HD.65TsygankoiteMn8Tl8Hg2(Sb21Pb2Tl)S48Mon. 2/m : B2/m
2.HD.70DrechsleriteTl4(Sb4-xAsx)S8 (1 < x < 2)Tric. 1 : P1

Other InformationHide

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

Internet Links for ChabournéiteHide

References for ChabournéiteHide

Reference List:
Picot, P. and Johan, Z. (1977) Atlas des Minéraux Métalliques. Atlas des Minéraux Métalliques. Mémoires du Bureau de Recherches Géologiques et Minières: 90, 406 pp.p.115
Fleischer, Michael, Chao, George Y., Pabst, and Adolf (1979) New Mineral Names. American Mineralogist, 64 (1-2) 241-245 p.242
Nagl, A. (1979) The crystal structure of a thallium sulfosalt, Tl8Pb4Sb21As19S68. Zeitschrift für Kristallographie, 150 (1-4). 85-106 doi:10.1524/zkri.1979.150.1-4.85
Johan, Zdenek, Mantienne, Joseph, Picot, Paul (1981) La chabournéite, un nouveau minéral thallifère. Bulletin de Minéralogie, 104 (1) 10-15 doi:10.3406/bulmi.1981.7538
Fleischer, M., Cabri, L.J., Chao, G.Y., Mandarino, J.A., Pabst, A. (1982) New mineral names. American Mineralogist: 67: 621-624.
(2005) Chabournéite. Handbook of Mineralogy. Mineralogical Society of America
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, Cristian, Moëlo, Yves, Favreau, Georges, Bourgoin, Vincent, Boulliard, Jean-Claude (2015) Structure of Pb-rich chabournéite from Jas Roux, France. Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, 71 (1). 81-88 doi:10.1107/s2052520614028157
Makovicky, Emil, Plášil, Jakub, Kasatkin, Anatoly V., Škoda, Radek (2021) The crystal structure of Tl2.36Sb5.98As4.59S17, the lead-free endmember of the chabournéite homeotypic group. The Canadian Mineralogist, 59 (3) 533-549 doi:10.3749/canmin.2000093
Miyawaki, Ritsuro, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2021) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) CNMNC Newsletter No 63. Mineralogical Magazine, 85 (6) 910-915 doi:10.1180/mgm.2021.74

Localities for ChabournéiteHide

Showing 5 localities.

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.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
France (TL)
 
  • Provence-Alpes-Côte d'Azur
    • Hautes-Alpes
      • Gap
        • La Chapelle-en-Valgaudemar
Mem. Bur. Rech. Geol. Minière (1977) +3 other references
Italy
 
  • Tuscany
    • Lucca Province
      • Stazzema
        • Sant'Anna di Stazzema
Biagioni et al. (2017)
Japan
 
  • Hokkaidō Prefecture
    • Shiribeshi Subprefecture
      • Abuta District
        • Takarada
Johan et al. (1981) +2 other references
Russia
 
  • Sverdlovsk Oblast
    • Serovsky District
      • Turya river
        • Tur'insk
Murzin et al. (2017) +6 other references
Switzerland
 
  • Valais
    • Goms
      • Binn
        • Fäld
EDXS P. Roth +1 other reference
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