Earth Science Quiz
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LAB AND FIELD SKILLS
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A student examines a sedimentary rock containing a mineral that is transparent and exhibits perfect cleavage. The mineral does not scratch a glass plate (hardness < 5.5) and does not react with dilute HCl. A small fragment of the mineral, when placed in water, dissolves completely. Which depositional environment is most likely responsible for the formation of the rock containing this mineral?
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