Purpleheart (also called Amaranth) is an exotic wood that originates from Central and South America. It has a gray-purple brown wood color that is quite unique among wood. We do not color the wood, this is the natural color of the wood. Over time, the wood will darken to a dark brown with a purple tint. Typically the wood has straight, but pronounced large pores / grain which gives character to the pen. Makes a great looking pen.