Where it forms, where it's found
- Geological setting
hydrothermal gold deposit
- Type locality
- Champion lode
- Central Schist Belt
- Kolar Gold Fields
- Kolar District
- Karnataka
- India
12.9526°, 78.2599°
4recorded occurrences
Safety & handling
Physical
- Transparency
- Opaque
- Colour
- Brownish gray
- Density
- 8.89 g/cm³
Optical
- Optical colour
- gray
- Tropism
- Isotropic
- Reflectance R%
- (23.7,24.3) 400, (24.7,25.2) 420, (25.6,26.1) 440, (26.6,27.1) 460, (27.6,28.2) 480, (28.6,29.2) 500, (29.6,30.1) 520, (30.3,31.0) 540, (31.1,31.8) 560, (31.8,32.4) 580, (32.4,32.9) 600, (32.7,33.3) 620, (33.0,33.5) 640, (33.2,33.6) 660, (33.2,33.6) 680, (33.2,33.6) 700
Reflected-light panel
R̄ 29.8 %anisotropic · dual curve
Specimen
White reference
R₁ R₂
Mode
Crystallography
- Cell parameters
- a = 5.71(5) Å · c = 3.77(5) Å
- Z
- 1
- Type-locality form
Intergrowths with kolarite, as 20-40 micron aggregates that replace altaite inclusions in galena.
- Comment
space group P4/m, P4, P-4, P422, P4mm, P42m or P4m2 and P4/mmm
Chemical composition
Synonyms
- IMA1983-082
- Radhakrishnaiet
In other languages
- German
- IMA 1983-082 · Radhakrishnait
- Italian
- Radhakrishnaite
Classification
Strunz
10th ed.3.AA.50
- 3HalidesClass
- 3.ASimple halides, without H2ODivision
- 3.AAM:X = 1:1, 2:3, 3:5, etc.Group
- 3.AA.50RadhakrishnaiteSpecies
Dana
8th ed.02.15.04.01
- 02SulfidesClass
- 02.15Chlor-sulfidesType
- 02.15.04— unnamed intermediate level —Group
- 02.15.04.01RadhakrishnaiteSpecies
CIM
—6.5.10
- 6Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and SulphohalidesClass
- 6.5SulphohalidesGroup
- 6.5.10RadhakrishnaiteSpecies
Literature, links & citation
Citations
- 1985Genkin, 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.
- 1986Hawthorne, F.C., Bladh, K.W., Burke, E.A.J., Ercit, S., Grew, E.S., Grice, J.D., Puziewicz, J., Roberts, A.C., Schedler, R.A., Shigley, J.E. (1986) New mineral names. American Mineralogist: 71: 1543-1548.
- 2007(2007) Radhakrishnaite. Handbook of Mineralogy. Mineralogical Society of America
Cite this entry
@misc{mineral2026,
author = {Mineral Index editorial board},
title = {Radhakrishnaite — Mineral Index},
year = {2026},
url = {https://mineralindex.org/minerals/radhakrishnaite-3349},
note = {Accessed 2026-05-11}
}