Enter a clue or pattern or both:

The Clue

Stalactite base (9 letter answer)

The Answer

LIMESTONE

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Notes

The answer LIMESTONE is so rare that it appears less than once every 2500 puzzles.

Related Clues

Luray Caverns material

Definition

LIMESTONE as a noun:

1. a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals