Uvarovite, the rarest of garnets, is named after him. The mineral in chromium-garnet group is uvarovite. In Asia, uvarovite has been reported from Taiwan. Uvarovite is a calcium chromium garnet with the formula CaCr(SiO). Uvarovite is named for Count Uvaro, a Russian imperial statesman. The chromium rich garnet uvarovite forms in interbedded layers with chromitite. In the eastern United States, uvarovite has been confirmed in Lancaster County, Pennsylvania. Uvarovite is a chromium-bearing garnet group species with the formula&colon; CaCr(SiO).