It would be best not to embed the stone into molten metal. I have
experime nted with this process previously with no good success.
Thought about replying yesterday, but I forgot - had actual work to
To expand on Don’s reply and even take it farther in the interest of
education - after you imbed the stone in metal, how are you going to
expose it again?
The expanded part: Moh’s scale (“The Girls Can Flirt And Other Queer
Things Can Do” - Talc, gypsum, calcite, etc.) goes from one to ten,
with diamond being ten and corundum being nine. Long ago somewhere I
read a really interesting paper that said: If the scale is expanded
and diamond becomes 1000, then corundum is around 350 and everything
else is under 100. Steel being something like 6-6.5, depending on
the steel, that means that steel is the butter, and diamond is the
hot knife, to mix metaphors. And your ruby, being 10 times as hard
(or so) as your tools, will just strip the edges off as soon as it
touches. Kind of like digging in granite with a popsicle stick…