Metal I note, dull, found around uranium (6)

I believe the answer is:
indium
'metal' is the definition.
(indium is a kind of metal)
'i note dull found around uranium' is the wordplay.
'i note' becomes 'in' (this could be a standard abbreviation which I don't know about).
'dull' becomes 'dim' (synonyms).
'found around' indicates putting letters inside.
'uranium' becomes 'U' (U is the chemical symbol for uranium).
'dim' going around 'u' is 'dium'.
'in'+'dium'='INDIUM'
Can you help me to learn more?
(Other definitions for indium that I've seen before include "Metallic element, In" , "Silvery-white metal" .)
