You can't just say "other forms of energy". That's a massive hand-wave. The electromagnetic field can be detected and manipulated experimentally. It also has reasonable theories of explanation and mathematics to describe its function. The theories made predictions that we later verified with experiments (meaning the theories were not just post-hoc descriptions).
A magnet is not special; it is just a material where lots of the magnetic domains are aligned in the same direction such that the overall magnetic field doesn't cancel to zero at a distance. Not all molecules have much of a magnetic moment themselves either so even if they were to align that doesn't mean they'd exhibit much of an overall field. Water falls into this bucket. It takes super strong magnets and super sensitive detectors to make MRIs work precisely because water's ability to be magnetized is so insanely small.
Also crystal is an arrangement of solid matter, not a thing unto itself. It just means the electromagnetic charges and shape of the molecule make the atoms want to orient in 3d space into a regular pattern. Any molecule that self-organizes into a repeating geometric pattern as it transitions from liquid creates a crystal.
A magnet is not special; it is just a material where lots of the magnetic domains are aligned in the same direction such that the overall magnetic field doesn't cancel to zero at a distance. Not all molecules have much of a magnetic moment themselves either so even if they were to align that doesn't mean they'd exhibit much of an overall field. Water falls into this bucket. It takes super strong magnets and super sensitive detectors to make MRIs work precisely because water's ability to be magnetized is so insanely small.
Also crystal is an arrangement of solid matter, not a thing unto itself. It just means the electromagnetic charges and shape of the molecule make the atoms want to orient in 3d space into a regular pattern. Any molecule that self-organizes into a repeating geometric pattern as it transitions from liquid creates a crystal.