lawsonite

noun
law·son·ite | \ˈlȯsᵊnˌīt\
plural -s

Definition of lawsonite 

: a pale or grayish blue mineral CaAl2Si2O6(OH)4 in prismatic orthorhombic crystals consisting of hydrous calcium aluminum silicate

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History and Etymology for lawsonite

Andrew C. Lawson †1952 American geologist + English -ite

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