GharExpert Fine Sandhttp://www.gharexpert.com/category/1396/Fine-Sand-0.aspx?CatID=1396Fine Sand information at GharExpert.com. Each particle of sand gets a coating of water due to surface tension.Fine Sand /classification of sandhttp://www.gharexpert.com/articles/Fine-Sand-894/Fine-Sand-classification-sand_0.aspx?PL=2&ArticleID=894&CatID=1396Fine sand should consist of natural sand or crushed stone sand. It should be hard, durable, clean and be free from organic matter etc. and should not contain any appreciable amount of clay balls and harmful impurities such as alkalis, salts, coal, decayed vegetation etc.