サハラ砂漠[saharasabaku] Sahara Desert
黄砂[kousa] loess
角砂糖[kakuzatou] cube sugar
玉砂利[tamajari] gravel
黒砂糖[kurozatou] brown sugar

砂子[isago] sand
砂岩[sagan] sandstone
砂丘[sakyuu] sand dune
砂金[sakin] gold dust
砂時計[sunadokei] hourglass