Natural sodium chloride (also named rocksalt; water-soluble). Occurs both as evaporite deposits in saline lakes and water courses, or as bedded sedimentary deposits, or as salt domes. Experimental volcanic gas condensation by Africano et al. (2002) shown halite to be the predominant sublimate in the 450-550 o C range. Recent studies show nanosized halite to be the second phase after aragonite ...
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