Sometimes it is not worth chasing the trace gold that could be trapped inside. Beryllium, cadmium stuff is still around and the danger is real. They just dont have that cross bones with skull pictogram on them when you have these chips n stuff in your hand. Looking pretty, gold plated... Innocent looking white ceramics. Innocent looking old brazing solder... They don´t give you a warning, unless you know where they usually hide.
Do not make the risk any greater by putting extra toxic chemicals into the soup. HF is something that you don´t want to work with, trust me. I did, in my scientific career once. With proper safety gear, hood etc. Dont take any chances to kill yourself unless you are skilled chemist with experience, and know what to do if anything go bad.
How would you dispose the fluoride/hydrofluoric waste afterwards ?