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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Hollow rock:

GEODE: Hollow rock
GEODE: Hollow rock with crystals
GEODES: Hollow rocks
GEODE: Hollow crystalline rock
GEODE: Hollow crystallized rock
GEODE: Rock with a hollow cavity
GEODE: Hollow, crystal-containing rock
GEODE: Hollow, crystal-filled rock