Cryptocrystalline graphite crystal is very small. So it’s also called microcrystal graphite.

Graphite particles are often embedded in clay and are difficult to separate. Because of the high grade of raw ore (60~80% of carbon content), many graphite mines crush the ore directly. The mine sells graphite powder directly after crushing. *** Graphite Ore used to set up a flotation plant for the flotation of micro-crystalline graphite in the 1950s. But the production was shut down because the cost was too high.

At present, some companies are still studying the new flotation process of microcrystal graphite (such as oil agglomeration flotation, etc.).

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