Sylvine is a mineral that is also known as rock salt or halite. This mineral is one of the most common and widely used in the world, being used for everything from cooking and seasoning food to de-icing roads and sidewalks. While sylvine is the most common name for this mineral, it can also be referred to by many other synonyms depending on the context in which it is being used. Some of these synonyms include common salt, table salt, sea salt, and sodium chloride, among others. Whether you are a chemist, a cook, or just someone who appreciates the unique properties of this mineral, there is sure to be a synonym that suits your needs.