Steam Jet Milling represents the pinnacle of micronization technology for high-purity minerals. Unlike traditional ball mills or even air jet mills, this process uses superheated steam as the grinding medium. The article explains the physics behind this: steam has a higher sonic velocity than air, which allows for higher-energy collisions between talc particles. This results in an incredibly fine particle size distribution (D_{97} < 8\mu m) without the risk of metallic contamination, as there are no moving grinding parts. One of the most critical advantages discussed is the preservation of the “lamellarity” or the plate-like structure of the talc. Maintaining these plates is vital for …