"chaniarts" wrote in message
...
RBnDFW wrote:
Harold & Susan Vordos wrote:

Gold should never be melted in any kind of metallic vessel. Molten
metals are strong solvents of other metals, so the gold will be
contaminated, often rendering it useless as it loses its ductility,
depending on the alloying element.

so, if I wanted to melt a few old rings down into a cube or ingot,
what vessel or mold material can one use?

ceramics

Here in the old west, I have found assayer's shacks, or what's left of them
with the remains of thousands of broken crucibles laying scattered all
about.

Steve