pumpellyite

noun

pum·​pel·​ly·​ite

ˌpəmˈpelēˌīt

plural -s

: a mineral Ca₄(Al,Mg,Fe)₆Si₆O₂₃(OH)₃.2H₂O(?) consisting of a hydrous calcium aluminosilicate probably related to clinozoisite

Word History

Etymology

Raphael Pumpelly †1923 American geologist + English -ite

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