... flakes are transparent , like thin glass chips;(3)bright pure white, no impurities;(4)high radius-thickness ratio, smooth surface;( ... 1-10 1200 Super white powderCHM02152~151000Super white powderCHM05255~25800Super white powderCHM05305~30600Super white powderCHM106010~60400bright white powderCHM201020~100160pure white powderCHM301530~150120pure white powderCHM401640~160100Bright luster ...