Magnetometers are also used for locating caverns, minerals, archeological artifacts and even lost cities -- among many other uses.

Quantum magnetometers are able to detect and visualize the tiniest damage in ferromagnetic materials. In aerospace technology or the automotive industry, they can help to significantly increase the ...

This article from Element Six outlines how the University of Warwick was able to create a fiber-coupled diamond magnetometer using CVD Diamond from Element Six.