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Rayite

A valid IMA mineral species
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09169300017271926081189.jpg
Rayite

Dariba Mine, Rajpura-Dariba mine, Rajsamand District, Udaipur Division, Rajasthan, India
08217810017271926119025.jpg
Rayite

Dariba Mine, Rajpura-Dariba mine, Rajsamand District, Udaipur Division, Rajasthan, India
09169300017271926081189.jpg
Rayite

Dariba Mine, Rajpura-Dariba mine, Rajsamand District, Udaipur Division, Rajasthan, India
08217810017271926119025.jpg
Rayite

Dariba Mine, Rajpura-Dariba mine, Rajsamand District, Udaipur Division, Rajasthan, India
09169300017271926081189.jpg
Rayite

Dariba Mine, Rajpura-Dariba mine, Rajsamand District, Udaipur Division, Rajasthan, India
08217810017271926119025.jpg
Rayite

Dariba Mine, Rajpura-Dariba mine, Rajsamand District, Udaipur Division, Rajasthan, India
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About RayiteHide

Formula:
Pb8(Ag,Tl)2Sb8S21
Colour:
Lead-gray
Lustre:
Metallic
Hardness:
2½
Specific Gravity:
6.13 (Calculated)
Crystal System:
Monoclinic
Name:
Named after Professor Santosh Kumar Ray (1908–1976), Indian petrologist, President College, Calcutta, India.
Compare UM1990-32-S:AgPbSb.


Unique IdentifiersHide

Mindat ID:
3374
Long-form identifier:
mindat:1:1:3374:5

Similar NamesHide

GayiteA valid IMA mineral speciesNaMn2+Fe53+(PO4)4(OH)6 · 2H2O
GrayiteA valid IMA mineral species - grandfathered(Th,Pb,Ca)(PO4) · H2O
RaiteA valid IMA mineral speciesMn2+Mn22+Na2(◻1.75Ti0.25)Si8O20(OH)2(H2O)4 · Na(H2O)6
RajiteA valid IMA mineral speciesCu(Te24+O5)
RaniteA synonym of Gonnardite
RathiteA valid IMA mineral species - grandfatheredAg2Pb12-xTlx/2As18+x/2S40

IMA Classification of RayiteHide

Classification of RayiteHide

Strunz-mindat (2026):
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
Dana 8th ed.:
3.6.20.5

3 : SULFOSALTS
6 : 2 < ø < 2.49
Hey's CIM Ref.:
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

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

Physical Properties of RayiteHide

Lustre:
Metallic
Transparency:
Opaque
Colour:
Lead-gray
Streak:
Lead-gray
Hardness:
2½ on Mohs scale
Cleavage:
None Observed
Density:
6.13 g/cm3 (Calculated)

Optical Data of RayiteHide

Anisotropism:
Perceptible, dark blue to dark reddish brown
Bireflectance:
Weak
Reflectivity:
WavelengthR1 (%)R2 (%)
400nm38.3%41.8%
420nm38.0%41.3%
440nm37.8%40.9%
460nm37.6%40.6%
480nm37.6%40.4%
500nm37.5%40.1%
520nm37.5%39.9%
540nm37.5%39.6%
560nm37.4%39.4%
580nm37.2%38.9%
600nm37.0%38.4%
620nm36.7%37.9%
640nm36.3%37.5%
660nm35.9%37.3%
680nm35.6%37.2%
700nm35.3%37.1%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 41.8%.
R1 shown in black, R2 shown in red
Colour in reflected light:
White with greenish and blueish tints
Internal Reflections:
None
Pleochroism:
Weak
Comments:
Greenish to greenish-blue.

Chemistry of RayiteHide

Mindat Formula:
Pb8(Ag,Tl)2Sb8S21
Element Weights:
Element% weight
Pb47.081 %
Sb27.667 %
S19.125 %
Ag6.128 %

Calculated from ideal end-member formula.
Elements listed:
Ag, Pb, S, Sb, Tl - search for minerals with similar chemistry
Common Impurities:
Cu

Crystallography of RayiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 13.60(2) Å, b = 11.96(3) Å, c = 24.49(5) Å
β = 103.94(12)°
Ratio:
a:b:c = 1.137 : 1 : 2.048
Unit Cell V:
3,866.13 ų (Calculated from Unit Cell)
Z:
4
Comment:
Point Group: n.d. ; Space Group: n.d.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.37 Å(100)
3.26 Å(90)
2.98 Å(50)
3.90 Å(30)
3.74 Å(30)
2.06 Å(30)
2.88 Å(20)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of RayiteHide

Type Locality:
ⓘ Dariba Mine, Rajpura-Dariba mine, Rajsamand District, Udaipur Division, Rajasthan, India
General Appearance of Type Material:
Tabular 30 µm grains and 0.5 mm patches.
Place of Conservation of Type Material:
Indian Institute of Technology, Kharagpur, India.
Institute of Mineralogy and Geochemistry of Rare Elements, Moscow, Russia.
Geological Setting of Type Material:
Polymetallic deposit.
Associated Minerals at Type Locality:
GalenaMeneghiniteOwyheeite
Reference:
Basu, K., Bortnikov, N.S., Moorkherjee, A., Mozgova, N.N., Tsepin, A.I., Vyalsov, L.N. (1983) Rare minerals from Rajpura-Dariba, Rajasthan, India IV: A new Pb-Ag-Tl-Sb sulphosalt, rayite. Neues Jahrbuch für Mineralogie, Monatshefte: 1983: 296-304.

Synonyms of RayiteHide

Other Language Names for RayiteHide

Dutch:Rayiet
German:Rayit
Simplified Chinese:硫锑铊银铅矿
Spanish:Rayita

Related Minerals - Strunz-mindat GroupingHide

2.HC.BernarlottiitePb6(As5Sb3)S18Tric. 1 : P1
2.HC.HuntingdonitePb19Sb16As6S51Cl2Tric. 1 : P1
2.HC.MoiraitePb12Sb8As8S36Tric. 1 : P1
2.HC.05fParapierrotiteTlSb5S8Mon. m
2.HC.05gMarumoitePb32As40S92Mon. 2 : P21
2.HC.05bBaumhauerite II
2.HC.05dRathiteAg2Pb12-xTlx/2As18+x/2S40Mon. 2/m : P21/b
2.HC.05eHeptasartoriteTl7Pb22As55S108Mon. 2/m : P21/b
2.HC.05dDufrénoysitePb2As2S5Mon. 2 : P21
2.HC.05eHendekasartoriteTl2Pb48As82S172Mon. 2/m : P21/b
2.HC.05bArgentobaumhaueriteAg1.5Pb22As33.5S72Tric. 1 : P1
2.HC.05cArgentoliveingiteAg3+xPb36-2xAs51+xS112Tric. 1 : P1
2.HC.05bBaumhaueritePb12As16S36Tric. 1 : P1
2.HC.05dVeenitePb16Sb9-xAs7+xS40, x ~ 0-0.5Mon. 2 : P21
2.HC.05eDekatriasartoriteTlPb58As97S204Mon. 2/m : P21/b
2.HC.05aHyršlitePb8As10Sb6S32Mon. 2 : P21
2.HC.05eIncomsartoriteTl6Pb144As246S516Mon. 2/m
2.HC.05cLiveingitePb20As24S56Mon. 2 : P21
2.HC.05cJohnjamboritePb14Sb8.5As7.5S38Tric. 1 : P1
2.HC.05fPierrotiteTl2(Sb,As)10S16Orth. mm2 : Pna21
2.HC.05dRathite-IVPbAs2S4
2.HC.05dArgentodufrénoysiteAg3Pb26As35S80Tric. 1 : P1
2.HC.05eÉcrinsiteAgTl3Pb4As11Sb9S36Tric. 1 : P1
2.HC.05aSartoritePbAs2S4Mon. 2/m : P21/m
2.HC.05aTwinnite Pb0.8Tl0.1Sb1.3As0.8S4Mon. 2/m
2.HC.05fPhilrothiteTlAs3S5Mon. 2/m : P21/b
2.HC.05hPolloneiteAgPb46As26Sb23S120Mon. 2 : P21
2.HC.05aGuettarditePb8(Sb0.56As0.44)16S32Mon. 2/m : P21/b
2.HC.10aFülöppitePb3Sb8S15Mon. 2/m : B2/b
2.HC.10dSemseyitePb9Sb8S21Mon. 2/m : B2/b
2.HC.10cHeteromorphitePb7Sb8S19Mon. 2/m : B2/b
2.HC.10bPlagionitePb5Sb8S17Mon. 2/m : B2/b
2.HC.15FalkmanitePb3Sb2S6Mon.
2.HC.15BoulangeritePb5Sb4S11Mon. 2/m : P21/b
2.HC.20RobinsonitePb4Sb6S13Mon. 2/m : P21/m
2.HC.25MoëloitePb6Sb6S14(S3)Orth. 222 : P21212
2.HC.30DadsonitePb23Sb25S60ClTric. 1 : P1
2.HC.35ZoubekiteAgPb4Sb4S10Orth.
2.HC.35Proto-owyheeiteAg9Pb40Sb45S112Mon. 2/m : P21/b
2.HC.35OwyheeiteAg3Pb10Sb11S28Mon. 2/m
2.HC.40ParasterryiteAg4Pb20Sb14As10S58Mon. 2/m : P21/b
2.HC.50LopatkaitePb5Sb3AsS11Mon. 2/m : P21/b

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 RayiteHide

References for RayiteHide

Localities for RayiteHide

Showing 2 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.
India
 
  • Rajasthan
    • Udaipur Division
      • Rajsamand District
Mukherjee et al. (1998)
- (1983) +1 other reference
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