Boracite is a rare mineral that is mainly composed of magnesium, boron, and chlorine. It has a distinct crystal structure that makes it an interesting mineral for collectors and scientists alike. It is also known by several other names, including boracite salt, magnesium borate, and magnesium chloride borate. Some of the less commonly used synonyms for boracite include halite borate, muriate borate, and magnesium dichloroborate. Regardless of what it is called, however, boracite remains one of the most unique and fascinating minerals in existence today. Its properties have made it useful in the manufacturing of certain types of glass, ceramics, and electronics.