Minerals within each system share certain geometric properties, resulting in similar external shapes. Pyrite belongs to something called the cubic system. The cubic, or isometric, crystal system ...

Nature has used 21 different ways over the last 4.5 billion years to create pyrite (aka Fool’s Gold) -- the mineral world’s champion of diverse origins. Pyrite forms at high temperature and ...

While salt is a familiar example of a cubic crystal, it’s just one of many minerals that naturally adopt this shape. Other ...