Zakharovite is a mineral, a silicate of sodium and manganese; formula Na4Mn5Si10O24(OH)6·6H2O. It has a yellow colour with a pearly lustre. Discovered in 1982 in the Kola peninsula of Northern Russia, it is named after Evgeii Evgen'evich Zakharov (1902–1980), the director of the Moscow Institute of Geological Exploration.
References
Zakharovite Wikipedia(Text) CC BY-SA