Coastal & Marine Geology InfoBank

USGS CMG InfoBank: Halite


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Comment: 07:56 - 08:34 (00:38)

Source: Annenberg/CPB Resources - Earth Revealed - 12. Minerals: The Materials of Earth

Keywords: halite, sodium, chlorine, atom, evaporation, lake, metal, gas, salt, mineral

Our transcription: A good example is halite.

Halite is a mineral that forms when sodium and chlorine atoms join during the evaporation of a lake.

By themselves, each of these elements is extremely dangerous.

Sodium, being an explosive metal; and chlorine, a poisonous gas.

Yet when they are joined together, sodium and chlorine combine to form something that most of us use all the time: ordinary table salt.

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Accessibility FOIA Privacy Policies and Notices
U.S. Department of the Interior \| U.S. Geological Survey URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/moviepage/11.01.09.html Page Contact: InfoBank staff Page Last Modified: Tue Oct 14 06:06:33 PDT 2008 (wcs)