Original color of diatomite is earthlike color due to plankton. It will be changed to be white by calcinations and also to be yellow, pink, dark gray and so on by blending with pigment. As for the pigment, we also select natural material like mineral or ocher.
Using chemical for pigment cut the cost and is easy to create though, it become worse easily by ultraviolet rays and discolor by the spot. Natural mineral might cause fading, but it goes without saying that the deterioration is very slower than chemical because it is make from mineral, rock and soil which had been created in nature for a long time.
EM Diatomite is colored by natural colored clay.
Using chemical for pigment cut the cost and is easy to create though, it become worse easily by ultraviolet rays and discolor by the spot. Natural mineral might cause fading, but it goes without saying that the deterioration is very slower than chemical because it is make from mineral, rock and soil which had been created in nature for a long time.
EM Diatomite is colored by natural colored clay.