What is "zakharovite"

n. (context mineralogy English) A silicate mineral of sodium and manganese, yellow in colour with a pearly lustre.

Zakharovite is a mineral, a silicate of sodium and manganese; formula Na Mn Si O(O H)·6 HO. 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.