... density1.85g/cm3 For decolorization stone: 1Typecobble & pebble (river stone)2Material100% natural stone3Usagelandscaping, paving, ... building, home decoration4Product class rangeunpolished pebble(super class, first class, second class)5Size ... 8~12cm6Color Availableblack, yellow, red, green, gray, white, mixed7Processwash, wax8Featuregood quality, low price9Package25kg woven bag, ...