Lepidocrocite lithium potassium titanate characterized as having a composition represented by the formula K.sub.0.5-0.7Li.sub.0.27Ti.sub.1.73O.sub.3.85-3.95, and preferably having an arithmetic mean of major and minor diameters of 0.1 100 .mu.m, a proportion of a major to minor diameter of from 1 to below 10, a mean thickness of 50 5,000 nm and a flaky shape. A friction material characterized as containing 1 80% by weight of the lepidocrocite lithium potassium titanate as a friction control agent.