Cremains are actually heat calcified bone fragments. They are whitish/grey in color and sometimes may have green or turquoise particulates in them. The color is a result of minerals contained within the bone itself. Most people are surprised to find that they are not just fine dust. The bone fragments are very small and are not offensive to view. The total amount of cremains, usually referred to in cubic inches, is directly related to the size, bone structure and weight of the pet that is cremated.