beidellite

noun bei·del·lite \ bī-ˈde-ˌlīt \

Definition of beidellite

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

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