Good characteristics: high color value, pure tone, Good stability in light, heat and pigmentation Purity natural. Red ... has some good characteristics like : bright color , high color value ,pure tone, Good stability in light, heat and pigmentation ,puerity natural , safe ... brown or redSmellIntrinsic smellSizePellet/60~200 mesh powder (optional)Color value(u/g)800~3000(optional)Pb (ppm)≤10As (ppm) ≤ ...