a dark coarse-grained sandstone containing more than 15 per cent clay
a 120-foot pyramid of battered greywacke a quarter mile offshore
the shales and greywackes of the Skiddaw Group
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Connections NYT: Hints For Today's Puzzle, Wed, May 21
Today’s NYT Connections Answers May 21, #710 - Daily Updates & Hints
Today’s Wordle Answer May 21 #1432- NYT Wordle Hints & Updates
NYT Mini Crossword Answers Today - The Mini for May 21 Solved
NYT Strands Today - Hints, Spangram & Answers for May 21