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Formula: Pb3(IO4)Cl3
Iodate containing halogen
Crystal System: Orthorhombic
Specific gravity: 6.83 measured on synthetic material, 7.052 calculated
Streak: Light yellow
Colour: Bright yellow
Environments
Seeligerite is a rare secondary mineral formed in the oxidised
zone of hydrothermal polymetallic mineral deposits
(HOM).
Localities
At the type locality, the Santa Ana Mine, Caracoles, Sierra Gorda, Antofagasta Province, Antofagasta, Chile, seeligerite
is associated with boleite,
paralaurionite and
schwartzembergite
(AM 57.327-328).
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