sursassite

noun

sur·​sass·​ite

ˌsərˈsaˌsīt

plural -s

: a mineral Mn₅Al₄Si₅O₂₁.3H₂O of the epidote group consisting of a hydrous silicate of manganese and aluminum

Word History

Etymology

Sursass (Oberhalbstein), eastern Switzerland, its locality + English -ite

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