text: what is rock salt and how does it formed? definition of rock salt and what experiment can i use carry out the result of rocksalt? . rock containing halite as its main constituent. coarsely ground or granulated common salt.  the noun rock salt has one meaning:  meaning #1: naturally occurring crystalline sodium chloride   synonym: halite   rock salt (with a deadly weapon)  rock salt (with a deadly weapon)is a halifax rap group comprised of auggie hayes and matt houlihan. they first collaborated in april 2005, on their first song magic card kid.  they are now close to completing their first album titled the bassment sessions. it features such songs as busch, saunders park, and glucose solids where they rhyme about their experiences in the west end of halifax.  the group now has quite a large cult following in west end halifax. collaborations with other rappers such as father rhyme are on their way. ( http://www.answers.com/rock+salt&r=67 )    make salt crystals        introduction:  crystals look and seem to be very valuable. however, did you know that you can make them right in your own home. this project will help you to make your own salt crystals. with few instructions and materials, you can make sparkling salt crystals in your home.          material and step by step instructions:  salt is one of the materials that can form crystals. crystallization is also a method of separation and purification of salt. you can use rock salt to make clear and pure salt crystals.    formation and growth of crystals is a slow process. formation of large salt crystals takes weeks or even months; however, small crystals can be formed in just a few days. in this project you may make different crystals and use them as a part of your display. in your report write what conditions makes a larger crystal.    you may also use salt crystals to construct varieties of different decorative objects. the picture on the right show two different candle lamps made of crystals.       details of this project more details or support on this project is available for the members of scienceproject.com. you may also be able to find good books about it in your local library.  ( http://www.scienceproject.com/projects/intro/primary/px015.asp )