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Radhakrishnaite

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Formula:
PbTe
 
3
(Cl,S)
 
2
System:TetragonalColour:Brownish gray
Name:Named after Bangalore Puttaiya Radhakrishnan, Director, Mysore Geological Department.



Classification of Radhakrishnaite

IMA status:Approved
Strunz 8th edition ID:2/F.15-20
Nickel-Strunz 10th (pending) edition ID:3.AA.50

3 : HALIDES
A : Simple halides, without H2O
A : M:X = 1:1, 2:3, 3:5, etc.
Dana 8th edition ID:2.15.4.1

2 : SULFIDES
15 : Chlor-sulfides
Hey's CIM Ref.:6.5.10

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

Type Locality:Champion lode, Central Schist Belt, Kolar Gold Fields, Kolar District, Karnataka, India
Year of Discovery:1985

Physical Properties of Radhakrishnaite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Brownish gray

Crystallography of Radhakrishnaite

Crystal System:Tetragonal
Cell Parameters:a = 5.71Å, c = 3.77Å
Ratio:a:c = 1 : 0.66
Unit Cell Volume:V 122.92 ų (Calculated from Unit Cell)

Chemical Properties of Radhakrishnaite

Formula:
PbTe
 
3
(Cl,S)
 
2
Simplified for copy/paste:PbTe3(Cl,S)2
Essential elements:Cl, Pb, Te
All elements listed in formula:Cl, Pb, S, Te

Relationship of Radhakrishnaite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
3.AA.05Marshite
CuI
3.AA.05Miersite
(Ag,Cu)I
3.AA.05Nantokite
CuCl
3.AA.05UM1999-11:I:CuS
Cu(I,S)
3.AA.10Iodargyrite
AgI
3.AA.10Tocornalite
(Ag,Hg)I
3.AA.15Bromargyrite
AgBr
3.AA.15Chlorargyrite
AgCl
3.AA.20Carobbiite
KF
3.AA.20Griceite
LiF
3.AA.20Halite
NaCl
3.AA.20Sylvite
KCl
3.AA.20Villiaumite
NaF
3.AA.25Salammoniac
NH
 
4
Cl
3.AA.25UM1998-03-Cl:Tl
TlCl
3.AA.25Lafossaite
Tl(Cl,Br)
3.AA.30Calomel
(Hg
+
2
)Cl
 
2
3.AA.30Kuzminite
(Hg
+
2
)(Br,Cl)
 
2
3.AA.30Moschelite
(Hg
+
2
)I
 
2
3.AA.35Neighborite
NaMgF
 
3
3.AA.40Chlorocalcite
KCaCl
 
3
3.AA.45Kolarite
PbTeCl
 
2
3.AA.55Challacolloite
KPb
 
2
Cl
 
5
3.AA.60Hephaistosite
TlPb
 
2
Cl
 
5
Related Minerals - Hey's Index Grouping:

- +
6.5.1Corderoite
Hg
2+
3
S
 
2
Cl
 
2
6.5.2Arzakite
Hg
2+
3
S
 
2
(Br,Cl)
 
2
6.5.3Lavrentievite
Hg
2+
3
S
 
2
(Cl,Br)
 
2
6.5.4Grechishchevite
Hg
2+
3
S
 
2
(Br,Cl,I)
 
2
6.5.5Radtkeite
Hg
2+
3
S
 
2
ICl
6.5.6Capgaronnite
HgAgS(Cl,Br,I)
6.5.7Perroudite
Hg
 
5
Ag
 
4
S
 
5
(I,Br)
 
2
Cl
 
2
6.5.8Ardaite
Pb
 
19
Sb
 
13
S
 
35
Cl
 
7
6.5.9Dadsonite
Pb
 
23
Sb
 
25
S
 
60
Cl
6.5.11Djerfisherite
K
 
6
(Fe,Cu,Ni)
 
25
S
 
26
Cl
6.5.12Thalfenisite
Tl
 
6
(Fe,Ni,Cu)
 
25
S
 
26
Cl

Other Names for Radhakrishnaite

Synonyms:
IMA1983-082
Other Languages:
German:Radhakrishnait
Simplified Chinese:硫碲铅矿
Spanish:Radhakrishnaita

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 Radhakrishnaite

Reference List:

- +
Canadian Mineralogist (1985): 23: 501-506.

American Mineralogist (1986): 71: 1545-1546.

Internet Links for Radhakrishnaite

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  • Localities for Radhakrishnaite

    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.
    China
     
    • Hebei Province
      • Zhangjiakou Prefecture
        • Chongli Co.
          • Dongping Au-Te ore field
    Minzhi Yang (2006): Contributions to Geology and Mineral Resources Research 21(1), 1-9
    India
     
    • Karnataka
      • Kolar District
        • Kolar Gold Fields
          • Central Schist Belt
    Genkin A D, Safonov Y G, Vasudev V N, Rao B K, Boronikhin V A, Vyalsov L N, Gorshkov A I, Mokhov A V (1985) Kolarite PbTeCl2 and radhakrishnaite PbTe3(Cl,S)2, new mineral species from the Kolar Gold Deposit, India, The Canadian Mineralogist, 23, 501-506
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