Salt (NaCl) has a cubic crystal system. Here are some other minerals that also have a cubic crystal system:

* Halite: This is just another name for salt!

* Galena (PbS): A lead sulfide mineral.

* Pyrite (FeS2): Also known as "fool's gold".

* Fluorite (CaF2): A common mineral used in a variety of applications.

* Diamond (C): The hardest known natural material.

* Magnetite (Fe3O4): A magnetic iron oxide.

Keep in mind that while these minerals share the same crystal system, they can differ in their specific crystal forms and properties.