1 pumpellyite | Definition of pumpellyite

pumpellyite

noun
pum·​pel·​ly·​ite | \ ˌpəmˈpelēˌīt\
plural -s

Definition of pumpellyite

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

History and Etymology for pumpellyite

Raphael Pumpelly †1923 American geologist + English -ite

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