Composed of or covered with particles resembling meal in texture or consistency. Synonyms:farinaceous, grainy, granular, granulose, gritty, mealy."The photographs were grainy and indistinct" , "It left a mealy residue"
2.
Not having a fine texture. Synonym:large-grained."Large-grained sand"
... that to the second chamber, were ornamented with delicate ice crystals, which occurred both on the limestone stalactites and on the walls, and presented almost the appearance of plants of cauliflower. The ice-floor of the first chamber is described as consisting of a 'coarse-grained' material. ... — Ice-Caves of France and Switzerland • George Forrest Browne