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

瓦礫[gareki] rubble
砂礫[sareki] pebbles
紙礫[kamitsubute] paper pellet
梨の礫[nashinotsubute] not getting a reply
飛礫[tsubute] stone thrown at somebody

礫岩[rekigan] conglomerate stone
火山礫[kazanreki] lapilli
雪礫[yukitsubute] snowball
闇夜の礫[yamiyonotsubute] aimless attempt