Mica wind selection is mostly realized through special equipment. Wholesale synthetic mica powder, the general process is: crushing→screening and classification→wind selection. After the ore is crushed, mica basically forms flakes, while the gangue minerals feldspar, quartz, etc. are block-shaped particles. According to this, the selected materials are pre-divided into narrower grades by multi-level classification. According to the difference of their suspension speed in the air flow, special air separation equipment is used for classification. The winnowing method is suitable for areas lacking water sources and has been used in actual production.

There is also a less commonly used beneficiation method, flotation, which is sorted according to the difference in the physical and chemical properties of the surface of mica and gangue. The ore is crushed and ground to dissociate the mica monomer. Under the action of the agent, the mica becomes a foam product and is separated from the gangue. Mica flotation can be carried out in acidic or alkaline pulp, and the cations of long carbon chain acetate amines and the anions of fatty acids are the collectors of mica. In the mica flotation process, three stages of roughing and three stages of selection are required to obtain mica concentrate. Therefore, mica ore flotation is used to recover mica and fine-grained mica below 14 meshes in pegmatite and mica schist. In my country, the flotation of mica ore has not been applied in production.