soda nitre

A Dictionary of Earth Sciences | 1999 | 473 words | Copyright

soda nitre (Chile saltpetre, nitratine) Very soluble mineral, NaNO₃; sp. gr. 2.2–2.3; hardness 1–2; trigonal; normally colourless or white, with various darker colours due to impurities; white streak; vitreous lustre; crystals rhombohedral, also occurs massive; cleavage perfect, rhombohedral; occurs in arid regions as surface deposits together with gypsum, halite, and other soluble nitrates and sulphates; deliquescent. It is worked as a source of nitrate.

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AILSA ALLABY and MICHAEL ALLABY. "soda nitre." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "soda nitre." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O13-sodanitre.html

AILSA ALLABY and MICHAEL ALLABY. "soda nitre." A Dictionary of Earth Sciences. 1999. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-sodanitre.html

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