Uniformity of composition through) plus the diploma of isotropy. The latter would be the extent to which the majority construction and composition are precisely the same in all directions in the rock. Sedimentary rocks make up most of Earth’s area, but These are merely a fraction of Earth’s full rock. https://rock-sticks89901.thelateblog.com/36794459/the-2-minute-rule-for-sticks-of-rock