Southwest charm and brooch 🌅

Rustic necklace charm - silver metal bull or cow’s head mounted on gorgeous banded Agate. Shaped like a teardrop with metal bail at top. The design looks almost Indian or Asian. The brooch appears to be a hand-painted and glazed Native design. Feather headdress on a shell? It’s very lightweight. I have no background on these pieces, unfortunately… vintage from an estate sale. No markings on either one. Note: the flaw on the face of the brooch was just some dust that I wiped off… haha. You can see it’s gone some of the pics.