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Pierrotite

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About PierrotiteHide

Roland Pierrot (1930-1998)
Formula:
Tl2(Sb,As)10S16
Sb:As of type material is ca. 3:2.
Colour:
Grayish black
Lustre:
Metallic, Sub-Metallic
Hardness:
Specific Gravity:
4.97
Crystal System:
Orthorhombic
Member of:
Name:
Named in 1970 by Claude Guillemin, Zdeněk Johan, Claude P. Laforêt, Paul Picot in honor of French mineralogist, Roland Pierrot (1930-1998). He was Head of the Mineralogy Department and General Secretary of the National Geographical Service at BRGM (French Geological Survey)
Dimorph of:
This page provides mineralogical data about Pierrotite.


Classification of PierrotiteHide

Approved
Approval Year:
1969
2.HC.05f

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
C : With only Pb
3.8.7.1

3 : SULFOSALTS
8 : 1 < ø < 2
5.5.17

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

Physical Properties of PierrotiteHide

Metallic, Sub-Metallic
Transparency:
Opaque
Colour:
Grayish black
Streak:
Red-brown
Hardness:
3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
4.97 g/cm3 (Measured)    4.75 g/cm3 (Calculated)

Optical Data of PierrotiteHide

Type:
Anisotropic
Reflectivity:
nmR= = 31.3 - 35.0 (540 nm%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 0%.

Chemical Properties of PierrotiteHide

Formula:
Tl2(Sb,As)10S16

Sb:As of type material is ca. 3:2.

Crystallography of PierrotiteHide

Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Pna21
Setting:
Pna21
Cell Parameters:
a = 8.77 Å, b = 38.8 Å, c = 8.03 Å
Ratio:
a:b:c = 0.226 : 1 : 0.207
Unit Cell V:
2,732.42 ų (Calculated from Unit Cell)
Z:
4
Comment:
Axes are in a new setting; old transformation abc -> bac

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.63 (80)
3.59 (100)
3.49 (90)
2.84 (80)
2.70 (90)
2.52 (60)
2.47 (60)
2.35 (80)
Comments:
ICDD 25-938

Type Occurrence of PierrotiteHide

General Appearance of Type Material:
Gray black laths and polycrystalline aggregates
Geological Setting of Type Material:
Hydrothermal deposit in limestone
Associated Minerals at Type Locality:

Synonyms of PierrotiteHide

Other Language Names for PierrotiteHide

German:Pierrotit
Simplified Chinese:硫锑铊矿
Spanish:Pierrotita

Relationship of Pierrotite to other SpeciesHide

Member of:
Other Members of this group:
ArgentobaumhaueriteAg1.5Pb22As33.5S72Tric. 1 : P1
ArgentodufrénoysiteAg3Pb26As35S80Tric. 1 : P1
ArgentoliveingiteAgxPb40-2xAs48+xS112Tric. 1 : P1
BarikaiteAg3Pb10(Sb8As11)S40Mon. 2/m : P21/b
BaumhaueritePb12As16S36Tric. 1 : P1
BernarlottiitePb6(As5Sb3)S18Tric. 1 : P1
BoscardiniteTlPb4(Sb7As2)S18Tric. 1 : P1
Carducciite(Ag2Sb2)Pb12(As,Sb)16S40Mon. 2/m : P21/b
DufrénoysitePb2As2S5Mon. 2 : P21
ÉcrinsiteAgTl3Pb4As11Sb9S36Tric. 1 : P1
EnneasartoriteTl6Pb32As70S140Mon. 2/m : P21/b
GuettarditePbAsSbS4Mon. 2/m : P21/b
HendekasartoriteTl2Pb48As82S172Mon. 2/m : P21/b
HeptasartoriteTl7Pb22As55S108Mon. 2/m : P21/b
HyršlitePb8As10Sb6S32Mon. 2 : P21
IncomsartoriteTl6Pb144As246S516Mon. 2/m
LiveingitePb9As13S28Mon.
ParapierrotiteTlSb5S8Mon. m
PhilrothiteTlAs3S5Mon. 2/m : P21/b
PolloneiteAgPb46As26Sb23S120Mon. 2 : P21
RathiteAg2Pb12-xTlx/2As18+x/2S40Mon. 2/m : P21/b
SartoritePbAs2S4Mon. 2/m : P21/m
Twinnite Pb0.8Tl0.1Sb1.3As0.8S4Mon. 2/m
VeenitePb2(Sb,As)2S5Mon. 2 : P21

Common AssociatesHide

Associated Minerals Based on Photo Data:
Routhierite3 photos of Pierrotite associated with Routhierite on mindat.org.
Realgar2 photos of Pierrotite associated with Realgar on mindat.org.
Smithite2 photos of Pierrotite associated with Smithite on mindat.org.
Laffittite1 photo of Pierrotite associated with Laffittite on mindat.org.
Wakabayashilite1 photo of Pierrotite associated with Wakabayashilite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.HC.05bArgentobaumhaueriteAg1.5Pb22As33.5S72Tric. 1 : P1
2.HC.05bBaumhaueritePb12As16S36Tric. 1 : P1
2.HC.05eChabournéiteTl4Pb2(Sb,As)20S34Tric. 1 : P1
2.HC.05dDufrénoysitePb2As2S5Mon. 2 : P21
2.HC.05aGuettarditePbAsSbS4Mon. 2/m : P21/b
2.HC.05cLiveingitePb9As13S28Mon.
2.HC.05fParapierrotiteTlSb5S8Mon. m
2.HC.05dRathiteAg2Pb12-xTlx/2As18+x/2S40Mon. 2/m : P21/b
2.HC.05aSartoritePbAs2S4Mon. 2/m : P21/m
2.HC.05aTwinnite Pb0.8Tl0.1Sb1.3As0.8S4Mon. 2/m
2.HC.05dVeenitePb2(Sb,As)2S5Mon. 2 : P21
2.HC.05gMarumoitePb32As40S92Mon. 2 : P21
2.HC.05eDalnegroite(Tl4Pb2)(As12Sb8)S34Tric. 1 : P1
2.HC.10aFülöppitePb3Sb8S15Mon. 2/m : B2/b
2.HC.10cHeteromorphitePb7Sb8S19Mon. 2/m : B2/b
2.HC.10bPlagionitePb5Sb8S17Mon. 2/m
2.HC.10dRayitePb8(Ag,Tl)2Sb8S21Mon.
2.HC.10dSemseyitePb9Sb8S21Mon. 2/m : B2/b
2.HC.15BoulangeritePb5Sb4S11Mon. 2/m : P21/b
2.HC.15FalkmanitePb3Sb2S6Mon.
2.HC.20RobinsonitePb4Sb6S13Mon. 2/m : P21/m
2.HC.25MoëloitePb6Sb6S14(S3)Orth. 2 2 2 : P21 21 2
2.HC.30DadsonitePb23Sb25S60ClTric. 1 : P1
2.HC.35OwyheeiteAg3+xPb10-2xSb11+xS28, -0.13 < x > +0.20Mon. 2/m : P21/b
2.HC.35ZoubekiteAgPb4Sb4S10Orth.
2.HC.40ParasterryiteAg4Pb20Sb14As10S58Mon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

5.5.1LoránditeTlAsS2Mon. 2/m : P21/b
5.5.2EllisiteTl3AsS3Trig. 3m : R3m
5.5.3ImhofiteTl5.8As15.4S26Mon. 2/m
5.5.4SimoniteTlHgAs3S6Mon. 2/m
5.5.6ChristiteTlHgAsS3Mon. 2/m
5.5.6RouthieriteTl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6Tet. 4 2m : I4 2m
5.5.7HutchinsoniteTlPbAs5S9Orth.
5.5.8Wallisite(Cu,Ag)TlPbAs2S5Tric.
5.5.9BernarditeTlAs5S8Mon. 2/m : P21/b
5.5.10VrbaiteHg3Tl4As8Sb2S20Orth. mmm (2/m 2/m 2/m) : Cmca
5.5.11RebuliteTl5Sb5As8S22Mon. 2/m : P21/b
5.5.12GillulyiteTl2As7.5Sb0.3S13Mon.
5.5.13WeissbergiteTlSbS2Tric. 1 : P1
5.5.14Rohaite(Tl,Pb,K)2Cu8.7Sb2S4Orth.
5.5.15VaughaniteTlHgSb4S7Tric.
5.5.16ChalcothalliteTl2(Cu,Fe)6SbS4Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
5.5.18ParapierrotiteTlSb5S8Mon. m
5.5.19CriddleiteTlAg2Au3Sb10S10Mon.
5.5.20ChabournéiteTl4Pb2(Sb,As)20S34Tric. 1 : P1

Fluorescence of PierrotiteHide

Not fluorescent

Other InformationHide

Health Risks:
Contains thallium - always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest.

References for PierrotiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bulletin Mineralogie (1970) 93:66.
American Mineralogist (1972): 57: 1909-1910.
American Mineralogist (1985): 70: 220.
Zeitschrift für Kristallographie: 165: 209-215.

Internet Links for PierrotiteHide

Localities for PierrotiteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
France (TL)
 
  • Provence-Alpes-Côte d'Azur
    • Hautes-Alpes
      • La Chapelle-en-Valgaudemar (La Chapelle-en-Valgaudémar)
Bull.Soc.fr.Min.Crist.(1970) 93, 66-71; American Mineralogist, Volume 68, pages 235-244, 1983; 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.
Russia
 
  • Urals Region
    • Middle Urals
      • Sverdlovskaya Oblast'
        • Krasnotur'insk (Bogolovsk; Krasnoturjinsk; Krasnoturyinsk)
          • Turya river
            • Tur'insk
Vikent'eva, O., & Vikentev, I. (2016, April). Occurrence modes of As, Sb, Te, Bi, Ag in sulfide assemblages of gold deposits of the Urals. In IOP Conference Series: Materials Science and Engineering (Vol. 123, No. 1, p. 012028). IOP Publishing.; Vikent'eva, O., & Vikentev, I. (2016, April). Occurrence modes of As, Sb, Te, Bi, Ag in sulfide assemblages of gold deposits of the Urals. In IOP Conference Series: Materials Science and Engineering (Vol. 123, No. 1, p. 012028). IOP Publishing.; Vikentyev, I. V., & Vikentyeva, O. V. (2015). Precious metal minerals and “invisible” gold in sulfide ores of Urals. In Mater. of ХII Int. Sci. Conf.“Advanced Technologies, Equipment and Analytical Systems for Materials and Nano-Materials (Vol. 3, pp. 33-41).
USA
 
  • Utah
    • Tooele Co.
      • Sheeprock Mts
        • Little Valley
Handbook of Mineralogy; King, N. R. (2014, October). THE MINERAL ASSEMBLAGE FROM LOOKOUT PASS AREA, SHEEPROCK MOUNTAINS, TOOELE CO., UTAH. In 2014 GSA Annual Meeting in Vancouver, British Columbia.
Mineral and/or Locality  
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