The Mystery of Fulcanelli's Violet Iron
In Les Demeures Philosophales , Fulcanelli asserts that alchemically pure iron displays a violet metallic luster. This statement immediately led us to question the conventional understanding of iron’s electronic structure. The standard configuration, [Ar] 3 d ⁶ 4 s ², does not permit d → s electron transitions, which are essential for color to emerge in metals. With only greyish metallic reflection possible under such a configuration, we began searching for alternative states that could explain Fulcanelli’s claim. This inquiry led us to the concept of spin bonds - an arrangement in which atoms remain electrically neutral while adopting non-traditional configurations, such as 3 d ⁷ 4 s ¹ and 3 d ⁶ 4 s ¹ 4 p ¹. These states open the door to both d → s and s → p transitions, and more importantly, allow for the energy gap between these orbitals to fall within the visible spectrum. Such a shift is the key condition for a metal to exhibit color. Through this discovery, we...
