随机散布的外来颗粒会产生“旋转树枝状结晶”，此类在晶体中树状结晶分枝并不会生成如同纯晶体般笔直、对称的型态而是以弯曲、劈裂的型态出现。 这个试样是在两种高分子混合与粘土颗粒随机散布生成的80nm厚膜中生长型态。(图片感谢美国国家标准与技术局)
Randomly dispersed foreign particles produce "dizzy dendrites," in which the tree-like branches in the crystals tend to curve and split, instead of forming the straight, symmetric patterns typical of pure crystals. This sample was grown in an 80-nanometer thick film of two blended polymers with randomly dispersed clay particles. (Photo courtesy of the National Institute of Standards and Technology (NIST).)