Minerals
Jôkokuite
jôkokuite
Jôkokuite: Mineral information, data and localities. — via www.mindat.org · Source
Overview
Jôkokuite is a manganese sulfate mineral with chemical formula MnSO4・5H2O. It crystallizes in the triclinic crystal system. It was discovered in 1976 by Matsuo Nanbu at the Jokoku mine in Hokkaido, and is named after the location.