Silk Mica Powder has smooth softer characteristics. more silky, whiter softer for eyeshadows, face ... Silk Sericite Mica has more silky, whiter, smooth softer characteristics.Soft Smooth Matte Mica Powder is a good filler/extender in ... of 10 - 40% because it offers up a soft, smooth texture and it is "mattifying".It is also a good ... for cream and pressed powder formulas.Packing Soft Smooth Mica Powder