Everything about Sylvite totally explained
Sylvite is
potassium chloride (
KCl) in natural
mineral form. It forms crystals in the
isometric system very similar to normal
rock salt,
halite (
NaCl). (The two are, in fact, isomorphous. Sylvite is colorless to white with shades of yellow and red due to inclusions. It has a
Mohs hardness of 2.5 and a
specific gravity of 1.99. It has a refractive index of n=1.490) . Sylvite has a salty taste with a distinct bitterness.
Sylvite is one of the last
evaporite minerals to precipitate out of solution. As such, it's only found in very dry saline areas. Its principal use is as a potassium fertilizer.
Sylvite is found in many evaporite deposits worldwide. Massive bedded deposits occur in New Mexico and western Texas, and in Utah in the US, but the largest world source is in Saskatchewan, Canada. The vast deposits in
Saskatchewan,
Canada were formed by the evaporation of a
Devonian seaway. Sylvite is the official mineral of Saskatchewan.
Sylvite was first described in 1832 at
Mt. Vesuvius near
Napoli in
Italy and named for the
Dutch chemist,
François Sylvius de le Boe (1614-1672).
Further Information
Get more info on 'Sylvite'.
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