astrophyllite

noun

as·​tro·​phyl·​lite

ˌastrəˈfiˌlīt

plural -s

: a mineral (K, Na)₂(Fe, Mn)TiSi₄O₁₄(OH)₂ consisting of a basic silicate of potassium or sodium, iron or manganese, and titanium

Word History

Etymology

International Scientific Vocabulary astr- + Greek phyllon leaf + International Scientific Vocabulary ite; originally formed as German astrophyllit

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