Mixing fine silver with Mineral Oxides

Group,
I need the help of a chemist. I am a jeweler and work making my own
alloys every week. What I am working on now is attampting to mix pure
silver or Gold (AU) with any form of a mineral oxide. What I am
wondering, (while this may seem like a silly question to a chemist,
which I am not so forgive me) is why one cannot mix raw mineral oxides,
(pigments in raw color forms) with any pure metal such as brass copper
or silver. In my pea brain, I keep thinking about mixing pigments to
candle wax. That is a liquid which then becomes solid. Why can't one
mix a mineral oxide in with a liquid metal, (silver) to produce a
unique color? I have often made pink silver with the formula for
Shibuichi, (copper and silver) but I keep thinking it might be
interesting to achieve a unique color without the use of a patina.
However, I don't know enought about chemistry and the moleculor issues
to understand why I could or could not try this experiment. Done alot
of research in texts and found NADA.
Any and all help would be appreicated.
Thanks,
SUZ