Gadolinium (element)
錷 is a rare character created specifically to represent the chemical element gadolinium. Its meaning is limited to that element and has no broader conceptual center.
錷 is a modern coined character for the element gadolinium, combining the metal radical 金 with 軋, likely chosen for its phonetic value アツ to approximate the element's name.
The metal radical 金 signals a metallic element, and the right side 軋 (which can mean 'squeak' or 'creak') can be imagined as the sound of a heavy gadolinium sample being moved. Together they point to the metal gadolinium.
For アツ, imagine a scientist saying 'Ah, it's gadolinium!' while pointing at the element: 'Ah, it's' -> アツ.