On the Unit Cell of Calcium Potassium Sulphate Hydrate: Synthetic and Natural Syngenite
The Building Research Station, Garston, Warford.
Summary: The space group and unit cell of natural syngenite have been redetermined. X-ray powder photographs of natural syngenite and synthetic CaSO4.K2SO4.H2O were found to be practically identical. Optical and d.t.a. data are also given.