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| | A Chemical Analysis of some Calamines. By James Smithson. |
 | | The water is most probably not an essential element of this calamine, or in it in the state of, what is improperly called, water of crystallization, but rather exists in the crystals in fluid drops interposed between their plates, as it often is in the crystals of nitre, of quartz, andc. |
 | | Deducting from calx of the zinc in Bleyberg calamine, that portion which corresponds, on these principles, to its yield of carbonic acid, the remaining quantity of calx of zinc and water is in such proportions as to lead, from the theory, to consider hydrate of zinc as composed of |
 | | It is more probable that they are the consequences of the disoxidation of the zinc calx, by the coal and the inflammable matter of the flame, its sublimation in a metallic state, and instantenous recalcination. |
| www.sil.si.edu /Exhibitions/Smithson-to-Smithsonian/calamine.html (2894 words) |
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