chalky

from WordNet (r) 3.0 (2006)

chalky
    adj 1: composed of or containing or resembling calcium carbonate
           or calcite or chalk [syn: {calcareous}, {chalky}]
    2: of something having the color of chalk; "she turned chalky
       white"

from The Collaborative International Dictionary of English v.0.48

Chalky \Chalk"y\, a.
   Consisting of, or resembling, chalk; containing chalk; as, a
   chalky cliff; a chalky taste.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

63 Moby Thesaurus words for "chalky":
      argent, argentine, branny, canescent, chalklike, comminute,
      comminuted, cretaceous, crushed, detrital, detrited, disintegrated,
      dusty, efflorescent, farinaceous, fine, flaky, fleecy-white,
      floury, frosted, frosty, furfuraceous, gone to dust, grated,
      grizzled, grizzly, ground, hoar, hoary, impalpable, lactescent,
      levigated, lily-white, marble, marmoreal, mealy, milky, milled,
      niveous, pestled, platinum, powdered, powdery, pulverant,
      pulverized, pulverulent, pure white, reduced to powder, scaly,
      scobicular, scobiform, scurfy, sharded, shredded, silver, silvered,
      silvery, snow-white, snowy, swan-white, triturated, white,
      white as snow