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Published June 10, 1984 | Published
Journal Article Open

Water in minerals? A peak in the infrared

Abstract

The study of water in minerals with infrared spectroscopy is reviewed with emphasis on natural and synthetic quartz. Water can be recognized in minerals as fluid inclusions and as isolated molecules and can be distinguished from hydroxide ion. The distinction between very small inclusions and aggregates of structurally bound molecules is difficult. New studies of synthetic quartz using near-infrared spectroscopy are reported. These demonstrate that water molecules are the dominant hydrogen containing species in synthetic quartz but that this water is not in aggregates large enough to form ice when cooled.

Additional Information

© 1984 by the American Geophysical Union. Received October 13, 1982; revised April 29, 1983; accepted June 16, 1983. This work has benefited from discussions with Stephen Kirby (USGS), who also provided the synthetic quartz samples used in this study, and from Clifford Frondel (Harvard) who provided the results of his study of low temperature silica in advance of publication. This study was in part funded by the National Science Foundation (Grant EAR-7919987). Contribution 3832, Division of Geological and Planetary Sciences, California Institute of Technology.

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