Do you know the shape and combination of brucite

Do you know the shape and combination of brucite?


It is formed by hydrolysis of soluble magnesium containing compounds in strong alkaline solution. It is the secondary change product of alkaline solution acting on magnesian silicate. The deposit is mainly related to serpentinite; It also occurs in contact metamorphic magnesite limestone and coexists with calcite, tremolite, serpentine, phlogopite, etc. Sometimes it occurs in dolomitized limestone and is associated with calcite, hydromagnesite and periclase. Brucite ore can be divided into three main types: spherical type, massive type and fibrous type:


Spherical type: it is formed by hydration of periclase and occurs in nodule shape, with a diameter of several millimeters to more than 20cm. The nodules are cemented by cryptocrystalline brucite and a small amount of calcite and serpentine. The ore is of good quality.


Massive type: it is the product of hydrothermal alteration of magnesium rich rocks. The ore is a crystalline granular massive aggregate, symbiotic with serpentine, calcite and magnesite, and the brucite content is about 30 ~ 40%.


Fiber type: it occurs in serpentinite in vein shape, and the content of fibrous brucite is generally 1 ~ 9%. The intercalated minerals are serpentine and magnetite. The purity of brucite is very high.