Sand

 is one of the ingredients needed to Craft glass. To obtain a bucket of sand, simply use a bucket on a sand pit (located in Yanille, Entrana, or Zanaris ???). To make molten glass, use the sand on a furnace with soda ash (cooked seaweed) in your inventory. The molten glass can then be blown with a glassblowing pipe to create one of the following:
 * Beer glass
 * Vial
 * Glass orb