The frequent textural conditions useful for rock sorts with respect to the scale of the grains or crystals, are supplied inside the Table. The particle-dimension categories are derived from the Udden-Wentworth scale created for sediment. For igneous and metamorphic rocks, the phrases are generally utilized as modifiers— Very common during https://www.generationgenius.com/videolessons/rocks-and-minerals-video-for-kids/