mica and titanium dioxide in shampoo

In terms of production, China is the largest producer of both calcium carbonate and titanium dioxide in the world. The country has abundant reserves of both minerals and a well-developed mining and processing industry
china
china calcium carbonate vs titanium dioxide. China's calcium carbonate production is concentrated in regions such as Guangdong, Guangxi, and Jiangsu, while titanium dioxide production is centered in provinces such as Shandong, Henan, and Sichuan.

...

In the pigment industry, rutile titanium dioxide is widely used due to its brightness and extremely high refractive index, which provides excellent hiding power in paints, plastics, paper, inks, fibers, and foods. It is the most common white pigment because of its non-toxicity, stability, and ability to reflect all colors of light equally. The use of rutile titanium dioxide in paint formulations ensures long-lasting, vibrant colors that are resistant to fading caused by exposure to sunlight.

...