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{%type%} Definitions

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Short "hint"

Clayey rock with the texture and composition of shale but little or no lamination

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Usage examples (37)
  • The "shale" is a sedimentary rock known as mudstone, and the "oil" is a waxy solid called kerogen.
  • It is created by minor metamorphism of shale or mudstone.
  • Where it cut the low banks, the rock looked like mudstone.
  • The eggshells in the fossilized mudstone nests were totally mashed.
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