[fiedzia]

> why did some of them find (and take) room in coin hoards?

People who had access to gold used some of it to create jewellery.

> Why have they been found all over Gallia, Germania, and Britannia, but not Italia, Hispania, or the Oriens?

Certain types of jewellery can be found in certain regions. This can be attributed to specific trading network or local preferences. I don't know if that could be proven, but makes sense to me.

[masklinn]

Knitting spools are not jewellery.