Is magnesium hydroxide and brucite the same thing

Brucite powder is a kind of natural mineral magnesium hydroxide. However, in general, magnesium hydroxide refers to the magnesium hydroxide produced by chemical process industry. There are great differences in purity and granularity between the two kinds of things. The price is also very poor. However, there is no clear conceptual definition on this issue. There is often deliberate confusion.