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June 18, 2011

Geology Word of the Week: C is for Coquina

Coquina rock. Image taken from wikipedia here. def. Coquina (“co-keen-ah”):A sedimentary rock consisting of loosely-consolidated fragments of shells and/or coral. The matrix or “cement” consolidating the fragments is generally calcium carbonate or phosphate. Coquina is a soft, white rock which is often used as a building stone. Coquina forms in near-shore environments, such as marine reefs. According to the Oxford English Dictionary, coquina is a loanword from Spanish meaning “shell-fish” …

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