beidellite

noun

bei·​del·​lite

bī-ˈde-ˌlīt

plural -s

: a mineral ideally Ca₀.₁₆Al₃Si₃.₁₇O₁₀(OH)₂ that is a common constituent of certain clays and consists of basic aluminosilicate with exchangeable calcium, sodium, or other cation

Word History

Etymology

Beidell, locality in Colorado + English -ite

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