Thank you, @Garry H (Cut Nut), @Karl_K, and @DejaWiz -- that is super-helpful! I feel so lucky to have access to this level of expertise on a public forum!
I will leave this one alone and make a pendant! No one I know has any need for a pendant but we will come up with something! It's not terrible to be constrained like that every now and then. And it's reassuring to know that there is a "use case" that can leverage the strengths the stone has; I can't throw this one back.
Yes -- and I could not achieve that with the pre-drilled holes; the stones rocked in the holes and even when I used a wide, flat plate to force the table parallel to the tabletop (horizontal), it did not (seem to) stay that way for any of the stones. I tapped gently with forceps and it "looked" correct but it never was. The photos are exactly what my eye saw so it's not the photography. I may need to experiment with drilling/melting (?) my own holes in the acrylic base-plate.
I will leave this one alone and make a pendant! No one I know has any need for a pendant but we will come up with something! It's not terrible to be constrained like that every now and then. And it's reassuring to know that there is a "use case" that can leverage the strengths the stone has; I can't throw this one back.
the table needs to be parallel with the scope lens and the camera lens parallel with both.
Yes -- and I could not achieve that with the pre-drilled holes; the stones rocked in the holes and even when I used a wide, flat plate to force the table parallel to the tabletop (horizontal), it did not (seem to) stay that way for any of the stones. I tapped gently with forceps and it "looked" correct but it never was. The photos are exactly what my eye saw so it's not the photography. I may need to experiment with drilling/melting (?) my own holes in the acrylic base-plate.