This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Consisting of or containing chalk.

adj. Resembling chalk in any way.

adj. Consisting of, or resembling, chalk; containing chalk.

Consisting of or containing chalk: as, “thy chalky cliffs,”

Resembling chalk in any way: as, a chalky taste; a chalky fracture.

adj. of something having the color of chalk

adj. composed of or containing or resembling calcium carbonate or calcite or chalk

"Not sure how goat cheese is described as chalky unless it's in reference to it's colouring."

neutral    achromatic   

chalkiness   

Cretaceous    cretous   

gravelly    ashy    powdery    basaltic    craggy    sandy    calcareous    windswept    brownish    clayey