The effect of various factors on the stability and physical properties of suspensions of recrystallized calcium stearate is shown. Non-polar oils form lyophobic systems that are unstable. Polar oils yield suspensions that are stable and lyophilic in character with little or no rigidity.The effect of small quantities of water is very marked. As a result of agglomeration, a structure is developed, and the system shows a strong stream double refraction. Lower alcohols have a similar effect. Fatty acid brings about agglomeration also but increasing quantities produce a solvent effect.Calcium oleate behaves similarly to calcium stearate, but the linoleate shows less stability.