derbylite

noun

der·​by·​lite

ˈdərbēˌlīt

plural -s

: a mineral probably Fe₆Ti₆Sb₂O₂₃ consisting of an iron antimonate and titanate in black prismatic orthorhombic crystals (specific gravity 4.53)

Word History

Etymology

Orville A. Derby †1915 American geologist + English -lite

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