Sunday, March 27, 2005

Nitrate And Iodate Minerals

Small group of naturally occurring inorganic compounds that are practically confined to the Atacama Desert of northern Chile; the principal locality is Antofagasta. These minerals occur under the loose soil as beds of grayish caliche (a hard cemented mixture of nitrates, sulfates, halides, and sand) 2–3 m (7–10 feet) thick. The much rarer iodate minerals occur sporadically,

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