Gravel smaller than sand is called fine sand. Fine sand is usually easily found on the beach and in the river. In civil engineering, according to the classification, ASTM called fine sand for gravels smaller than 4.75 mm and coarser than 0.075 mm of. 

Its economic growth is about 6 percent, which seems appropriate for a war-torn country. Of course, a large volume of this GDP and growth is related to the western territories of Palestine, and the Gaza Strip ‎ has less of a role in these figures. The Gaza Strip ‎ industry is often made up of family businesses that produce textiles, soap, olive wood carvings, and pearl oyster souvenirs.

Sand is produced by crushing rocks. Coarse stones are produced from the crushing and separation of natural stones, and finer sands, in addition to stones, also contain shells and corals. In civil engineering, aggregates smaller than 75 mm and coarser than 4.75 are called sand. Sands are divided into two categories according to the source and type of grains used in construction.