Iron is the 26th element in the periodic table. The ultraviolet colors only have a representation of the tones, and as they were also very strong lines, they are included here.

Iron

AngstromNanometer (rounded)ColorHertzNoteHertz
4383.55438Indigo311D#4311.127
4045.81405Indigo-violet336.97E4329.63
3886.28389Violet350.8F4349.23
3859.91386Violet353.19
3820.42382Violet356.85
3758.23376Near ultraviolet362.75
3749.48375Near ultraviolet363.6
3748.26375Near ultraviolet363.71
3745.56375Near ultraviolet363.98
3737.86374Near ultraviolet364.73
3719.93372Near ultraviolet366.48F#4369.99

Sine:

Sine:

Sine:

Sine:

Sine:

Sine 376 nm. There are no images for the infrared tones:

Sine for 372 nm.:

Here is a scale with all the tones:

Here is the scale of iron from the tone generator. It has a very limited range:

And here is a little improvisation with the tones: