That is an interesting ring. It may not be old, but it seems to
be an old design to me. But it seems to have more modern
construction. Mind you, I am no expert.
I have never seen a natural stone like that. All the non-transparent
blue stones I now of have different shades, or marbleing.
It almost looks like plastic. But it is hard to say in a photo.
The sparkily insert looks like gold stone.
Gold stone is a man made sparkling glass.
Here is a photo of a Gold Stone I found on tha
Goldstone is a type of glittering glass made in the
presence of a reducing flame. The finished product
can take a smooth polish and be carved into beads,
figurines, or other artifacts suitable for semiprecious
stone, and in fact goldstone is often mistaken or
misrepresented as a natural material.
The most common form of goldstone appears to be
reddish-brown, due to the presence of tiny crystals
of metallic copper. When the reduced goldstone melt
cools, the copper remains in atomic isolation and
precipitates into small crystalline clusters which
reflect light through the surrounding transparent or
translucent glass, rendering the final product effectively
opaque. (Under normal oxidative conditions, copper
ions meld into the silica to produce transparent
bluish-green glass.) Some goldstone variants have an
intensely-colored glass matrix - usually blue or violet,
more rarely green - and a more silvery appearance to
the suspended crystals , whose color may be partially
masked by the glass, or which may be based on
different metals (perhaps cobalt, manganese or chromium).
The manufacturing process for goldstone was discovered
in seventeenth-century Venice by the Miotti family.
Other names for Gold Stone "monk"s gold" or "monkstone".
Another name, "stellaria", is based on the starry internal
reflections. It is also called "sun sitara".
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I have one small gold stone.
I can not seem to take a pic
that shows what it looks like,
but I had fun tryin,
Thanks fer lOOkin,
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