- Seeligerite
Seeligerite is a rare complex
lead chlorate iodate mineral with formula: Pb3Cl3(IO3)O. It is a yellow mineral crystallizing in theorthorhombic system. It has perfect to good cleavage in two directions and a quite highspecific gravity of 6.83 due to the lead content. It is translucent to transparent with refractive indices of nα=2.120 nβ=2.320 nγ=2.320.It was first reported in 1971 from the Casucha Mine, Sierra Gorda,
Antofagasta ,Chile .References
* [http://www.mindat.org/min-3603.html Mindat with occurrence]
* [http://www.webmineral.com/data/Seeligerite.shtml Webmineral]
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