tainiolite

noun

tai·​ni·​o·​lite

ˈtīnēōˌlīt

plural -s

: a mineral KLiMg₂Si₄O₁₀F₂ consisting of a silicate and fluoride of potassium, lithium, and magnesium of the mica group

Word History

Etymology

tainio- (from Greek tainia band) + -lite; akin to Greek teinein to stretch

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