... , whiter softer for eyeshadows, face powders etc. Silk Sericite Mica has more silky, whiter. Silk Sericite Mica has more silky, whiter, smooth ... softer characteristics.Silk mica is a good filler/extender in loose mineral eyeshadow and face powder at a concentration of ... ".It is also a good choice for cream and pressed powder formulas. Silk Mica Powder