Note: for those of you who don't have suitable rocks or want to skip the labor... you can buy pigment ready to make into paint. I have some Ozark pigments and rocks at my shop (https://shop.wildozark.com), but also EarthPigments.com has a tremendous selection of synthetic and natural pigments to choose from. I order my titanium and primary yellow, green, and blue from here and can recommend them. If you're taking my course, the technique for making the paint using purchased pigments would be the same as using the washed pigments you learn how to make in my course.