coarse-grained russian

• кру́пный

  big, large, sizeable

  large, major, substantial

  coarse, coarse-grained

  leading, prominent, outstanding, significant

  important, serious, major

• крупнозерни́стый

  coarse-grained

Examples

• Этот песок очень крупнозернистый и грубый на ощупь.

  This sand is very coarse-grained and rough to the touch.

• Порода оказалась крупнозернистой и тяжёлой.

  The rock turned out to be coarse-grained and heavy.