cesarolite

noun

ce·​sa·​ro·​lite

ˌchāzəˈrōˌlīt

plural -s

: a mineral H₂PbMn₃O₈ occurring in spongy steel-gray masses and supposed to be a hydrous lead manganate (hardness 4.5, specific gravity 5.3)

Word History

Etymology

French, from G.R.P.Cesaro †1939 Italian-Belgian mineralogist + French -lite

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