Sylvite, or sylvine, is potassium chloride (KCl) in natural mineral form. It forms crystals in the isometric system very similar to normal rock salt,...

low as 25 °C. The 25 °C isotherm of the system has leonite surrounded by sylvine, picromerite, astrakanite, epsomite, and kainite. Sodium chloride saturated...

(1 November 1928). "A Quantitative Study of the Reflexion of X-Rays by Sylvine". Proceedings of the Royal Society A: Mathematical, Physical and Engineering...