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Perroudite

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Cap Garonne Mine, Pradet, Var, Provence-Alpes-Côte d'Azur, France
© JM. Johannet

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Formula:
Hg
 
5
Ag
 
4
S
 
5
I
 
2
Cl
 
2
System:OrthorhombicColour:Bright red
Hardness:2
Name:For Pierre Perroud, Geneva, Switzerland
This page provides mineralogical data about Perroudite.

Classification of Perroudite

IMA status:Approved 1986
Strunz 8th edition ID:2/F.13-20
Nickel-Strunz 10th (pending) edition ID:2.FC.20c

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
C : With Cl, Br, I (halide-sulfides)
Dana 8th edition ID:2.15.5.1

2 : SULFIDES
15 : Chlor-sulfides
Hey's CIM Ref.:6.5.7

6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
5 : Sulphohalides
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Type Occurrence of Perroudite

Type Locality:Cap Garonne Mine, Pradet, Var, Provence-Alpes-Côte d'Azur, France
General Appearance of Type Material:Fibrous tufted aggregates
Place of Conservation of Type Material:Natural History Museum, Geneva, Switzerland.
Geological Setting of type material:Oxidation zone of copper lead mine.

Occurrences of Perroudite

Geological Setting:Supergene zone

Physical Properties of Perroudite

Lustre:Adamantine, Vitreous
Diaphaneity (Transparency):Transparent
Colour:Bright red
Streak:Reddish-orange
Hardness (Mohs):2
Tenacity:Brittle
Cleavage:Perfect
{100}
Density (calculated):6.6 g/cm3

Crystallography of Perroudite

Crystal System:Orthorhombic
Class (H-M):2 2 2 - Disphenoidal
Space Group:P21 21 2
Cell Parameters:a = 17.47Å, b = 12.23Å, c = 4.29Å
Ratio:a:b:c = 1.428 : 1 : 0.351
Unit Cell Volume:V 917.5 ų
Morphology:Prismatic
Twinning:contact twinned 0hl?

Optical Data of Perroudite

Type:Biaxial (+)
RI values: nα = 2.300 nβ = 2.400
2V:Measured: 70°
Maximum Birefringence:δ = 2.300

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r > v very strong
Pleochroism:Strong
Comments:X= dark brownish red
Y= Yellow
Z= brownish-yellow

Chemical Properties of Perroudite

Formula:
Hg
 
5
Ag
 
4
S
 
5
I
 
2
Cl
 
2
Essential elements:Ag, Cl, Hg, S
All elements listed in formula:Ag, Cl, Hg, I, S

Relationship of Perroudite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.FC.05Djerfisherite
K
 
6
(Cu,Fe,Ni)
 
25
S
 
26
Cl
2.FC.05Thalfenisite
Tl
 
6
(Fe,Ni,Cu)
 
25
S
 
26
Cl
2.FC.05Owensite
(Ba,Pb)
 
6
(Cu,Fe,Ni)
 
25
S
 
27
2.FC.10Bartonite
K
 
3
Fe
 
10
S
 
14
2.FC.10Chlorbartonite
K6Fe24S26(Cl,S)
2.FC.15aArzakite
Hg
2+
3
[(Br,Cl)
 
2
|S
 
2
]
2.FC.15aCorderoite
Hg
2+
3
[Cl
 
2
|S
 
2
]
2.FC.15cGrechishchevite
Hg
2+
3
[(Br,Cl,I)
 
2
|S
 
2
]
2.FC.15aLavrentievite
Hg
2+
3
[(Cl,Br)
 
2
|S
 
2
]
2.FC.15dRadtkeite
Hg
2+
3
[Cl|I|S
 
2
]
2.FC.15bKenhsuite
Hg
2+
3
[Cl
 
2
|S
 
2
]
2.FC.20aCapgaronnite
HgS·Ag(Cl,Br,I)
2.FC.20bIltisite
HgSAg(Cl,Br)
2.FC.25Demicheleite-(Br)
BiSBr
2.FC.25Demicheleite-(Cl)
BiSCl
Related Minerals - Hey's Index Grouping:

- +
6.5.1Corderoite
Hg
2+
3
[Cl
 
2
|S
 
2
]
6.5.2Arzakite
Hg
2+
3
[(Br,Cl)
 
2
|S
 
2
]
6.5.3Lavrentievite
Hg
2+
3
[(Cl,Br)
 
2
|S
 
2
]
6.5.4Grechishchevite
Hg
2+
3
[(Br,Cl,I)
 
2
|S
 
2
]
6.5.5Radtkeite
Hg
2+
3
[Cl|I|S
 
2
]
6.5.6Capgaronnite
HgS·Ag(Cl,Br,I)
6.5.8Ardaite
Pb
 
19
Sb
 
13
S
 
35
Cl
 
7
6.5.9Dadsonite
Pb
 
23
Sb
 
25
S
 
60
Cl
6.5.10Radhakrishnaite
PbTe
 
3
(Cl,S)
 
2
6.5.11Djerfisherite
K
 
6
(Cu,Fe,Ni)
 
25
S
 
26
Cl
6.5.12Thalfenisite
Tl
 
6
(Fe,Ni,Cu)
 
25
S
 
26
Cl

Other Names for Perroudite

Synonyms:
IMA1986-035
Other Languages:
German:Perroudit
Russian:Перрудит
Spanish:Perroudita

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 Perroudite

Reference List:Sarp, H., Birch, W.D., Hlava, P. F., Pring, A., Sewell, D.K., & Nickel, E. H. (1987): Perroudite, a new sulfide-halide of Hg and Ag from Cap-Garonne, Var, France, and from Broken Hill, New South Wales, and Coppin Pool, western Australia: American Mineralogist: 72: 1251-1256 (1987)

Mumme, W. G. & Nickel, E.H. (1987): Crystal structure and crystal chemistry of perroudite: A mineral from Coppin pool, western Australia American Mineralogist 72:1257-1262.

Keller, P., Lissner, F., Schleid, Th. (2005): Single-crystal structure determination of perroudite, Hg5Ag4S5(I,Br)2Cl2, from Tsumeb (Namibia), and its structural relationships to other sulfide halides of mercury and cinnabar. Neues Jahrbuch für Mineralogie - Abhandlungen, 181, 1-9.

Internet Links for Perroudite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Perroudite in the Natural History Museum (London) online catalogue
  • Perroudite details from Handbook of Mineralogy (PDF)
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    Localities for Perroudite

    Hide Locality List
    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.
    Australia
     
    • New South Wales
      • Yancowinna Co.
    		Am.Min.72: 1251-1256 (1987)
    • Western Australia
    		J.Earth Sci. 32(3),311-321 (1985); Am.Min.72: 1251-1256 (1987)
      • Pilbara Region
        • Ashburton Shire
    		[MinRec 24:203]
            • Anticline prospect
    		Nickel, E. H. & Gartrell, B. J. (1993): Secondary Minerals from Ashburton Downs, Western Australia. Mineralogical Record 24, 203-216, 218.
    Chile
     
    • Atacama Region
      • Copiapó Province
    		Am.Min. 91, 1909-1917(2006)
        • Tierra Amarilla
          • Pampa Larga district
    		Maurizio Dini & Robert Jenkins collections; material analysed by Dr. Jochen Schluter
    France
     
    • Provence-Alpes-Côte d'Azur
      • Var
        • Pradet
    		Amer.Min.72, 1251-1262 (1987)
    Germany
     
    • Rhineland-Palatinate
      • Kirchheimbolanden
        • Mörsfeld
    		Lapis 2001(6), 40
      • Lahn valley
        • Bad Ems District
          • Frücht
    		Schnorrer, G., (1993): Mineralogische Notitzen VI, Der Aufschluss, Vol. 44, 44-58
      • Rockenhausen
        • Stahlberg
    		Lapis 2001(6), 13-40
      • Westerwald
        • Wied Iron Spar District
          • Neuwied
            • Dernbach
    		Krause, W., (1988): Perroudit und Karminit von der Grube "Schöne Aussicht" bei Dernbach, Der Aufschluss, Vol. 39, 169-175
    Hungary
     
    • Borsod-Abaúj-Zemplén Co.
      • Rudabányai Mts.
        • Rudabánya
    		Szakáll: Minerals of Rudabánya, 2001
    Namibia
     
    • Otjikoto (Oshikoto) Region
      • Tsumeb
    		• Keller, P., Lissner, F., Thomas Schleid, Th. (2005): Single-crystal structure determination of perroudite, Hg5Ag4S5(I,Br)2Cl2, from Tsumeb (Namibia), and its structural relationships to other sulfide halides of mercury and cinnabar. Neues Jahrbuch für Mineralogie - Abhandlungen, 181, 1-9.
    Russia
     
    • Urals Region
      • Southern Urals
        • Orenburgskaya Oblast'
          • Gay
    		P.M. Kartashov data
    Slovakia
     
    • Košice Region
      • Southern Slanské Mts
    		Koděra, P., Rojkovičová, Ľ.,Košárková, M., 1998: Mineralógická správa lokality Byšta, Au-Ag. Manuscript, Archiv Geofond, Bratislava, 68 p
    Spain
     
    • Andalusia
      • Huelva
        • Minas de Riotinto
    		Bocamina, (4), (1999) 50-86.
    • Valencian Community
      • Castellón
        • Chóvar
          • Bellota ravine
    		Viñals, J. y Calvo, M. (2007): Corderoíta, Kenhsuíta, y Perroudita. Sulfohalogenuros de Mercurio de Chóvar, Castellón. Revista de Minerales. 3(3):46-49. Barcelona
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 28th Oct 2009 19:29:30