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beidellite

noun
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bei·​del·​lite | \ bī-ˈde-ˌlīt\
plural -s

Definition of beidellite

: 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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History and Etymology for beidellite

Beidell, locality in Colorado + English -ite

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