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Rayite

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Formula:
(Ag,Tl)2Pb8Sb8S21
System:
Monoclinic
Colour:
Lead-gray
Hardness:
Name:
Named after Professor Santosh Kumar Ray (1908–1976), Indian petrologist, President College, Calcutta, India.
This page provides mineralogical data about Rayite.


Classification of Rayite

Approved
2.HC.10d

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
C : With only Pb
3.6.20.5

3 : SULFOSALTS
6 : 2 < ø < 2.49
5.7.46

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

Type Occurrence of Rayite

Physical Properties of Rayite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Lead-gray
Streak:
Lead-gray
Hardness (Mohs):

Crystallography of Rayite

Crystal System:
Monoclinic
Cell Parameters:
a = 13.6Å, b = 11.96Å, c = 24.49Å
β = 103.94°
Ratio:
a:b:c = 1.137 : 1 : 2.048
Unit Cell Volume:
V 3,866.13 ų (Calculated from Unit Cell)

Chemical Properties of Rayite

Formula:
(Ag,Tl)2Pb8Sb8S21
Elements listed in formula:
Common Impurities:
Cu

Relationship of Rayite to other Species

2.HC.05bArgentobaumhaueriteAg1.5Pb22As33.5S72
2.HC.05bBaumhaueritePb12As16S36
2.HC.05eChabournéiteTl4Pb2(Sb,As)20S34
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.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
5.7.1SeligmanniteCuPbAsS3
5.7.2BournoniteCuPbSbS3
5.7.3MeneghinitePb13CuSb7S24
5.7.4GladiteCuPbBi5S9
5.7.5LindströmitePb3Cu3Bi7S15
5.7.6KrupkaitePbCuBi3S6
5.7.7HammariteCu2Pb2Bi4S9
5.7.8FriedrichiteCu5Pb5Bi7S18
5.7.9AikiniteCuPbBiS3
5.7.10NuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7
5.7.11JaskólskiiteCuxPb2+x(Sb,Bi)2-xS5 (x~0.2)
5.7.12TintinaitePb10Cu2Sb16S35
5.7.13KobellitePb11(Cu,Fe)2(Bi,Sb)15S35
5.7.14ProuditePb8Bi10S23
5.7.15NordströmitePb3CuBi7S14
5.7.16WatkinsonitePbCu2Bi4Se8
5.7.17PekoiteCuPbBi11S18
5.7.18PetroviciteCu3HgPbBiSe5
5.7.19Eclarite(Cu,Fe)Pb9Bi12S28
5.7.20MarriteAgPbAsS3
5.7.21ArgentobaumhaueriteAg1.5Pb22As33.5S72
5.7.22AndoriteAgPbSb3S6
5.7.23RamdohriteCdAg5.5Pb12Sb21.5S48
5.7.24Roshchinite(Ag,Cu)19Pb10Sb51S96
5.7.25OurayiteAg3Pb4Bi5S13
5.7.26EskimoiteAg7Pb10Bi15S36
5.7.27FizélyiteAg5Pb14Sb21S48
5.7.28OwyheeiteAg3Pb10Sb11S28
5.7.29FreieslebeniteAgPbSbS3
5.7.30DiaphoriteAg3Pb2Sb3S8
5.7.31Sterryite(Ag,Cu)2Pb10(Sb,As)12S29
5.7.32VikingiteAg5Pb8Bi13S30
5.7.33ZoubekiteAgPb4Sb4S10
5.7.34SchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9
5.7.36GustaviteAgPbBi3S6
5.7.37KitaibeliteAg10PbBi30S51
5.7.38TreasuriteAg7Pb6Bi15S30
5.7.39BenjaminiteAg3Bi7S12
5.7.40LengenbachiteAg4Cu2Pb18As12S39
5.7.41BerryiteCu3Ag2Pb3Bi7S16
5.7.42NeyiteAg2Cu6Pb25Bi26S68
5.7.43Larosite(Cu,Ag)21PbBiS13
5.7.44CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5
5.7.45PadĕraiteCu7(Cu,Ag)0.33Pb1.33Bi11.33S22
5.7.47RathiteAg2Pb12-xTlx/2As18+x/2S40
5.7.48HatchiteAgPbTlAs2S5

Other Names for Rayite

Name in Other Languages:
German:Rayit
Simplified Chinese:硫锑铊银铅矿
Spanish:Rayita

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 Rayite

Reference List:
American Mineralogist: 69: 211.

Neues Jahrbuch für Mineralogie, Monatshefte (1983): 296-304.

Bente, K., Meier-Salimi, M. (1991): Substitution experiments and structure investigations on Ag-Tl-bearing boulangerites - a contribution to the rayite problem. Neues Jahrbuch für Mineralogie, Abhandlungen, 163, 212-216.

Internet Links for Rayite

mindat.org URL:
http://www.mindat.org/min-3374.html
Please feel free to link to this page.

Localities for Rayite

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.
India (TL)
 
  • Rajasthan (Rajputana)
    • Udaipur Division
      • Udaipur District
        • Rajpura-Dariba deposit
Neues Jahrb.,Mh.(1983) 269-304; Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
Mineral and/or Locality  
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