Ground brucite, natural magnesium hydroxide, we have our own brucite mine in China.
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Use in fertilizer
Brucite is used for magnesium fertilizer particles. Pure natural brucite ore after high temperature calcination, reduction, baking, unique process. Particles are rich in structural water and trace elements to improve crop absorption, regulate acid soil, supplement crop nutrition and improve quality.

The main component of brucite is magnesium hydroxide, which belongs to the slightly soluble mineral type alkaline magnesium fertilizer. On the one hand, the rate of release of available magnesium is slow, usually in the slow-acting form of magnesium fertilizer application, on the other hand, due to low solubility, little dripping loss.