The thread is too long to search for the questioner.
The Xrays we had taken were done by Allan Myers.
Allan tells me the charges for a full series of 18 teeth Xrays is $66.

$13 for the 1st one and $10 each additional if less than a full series is run. Ca, NY & Fl are higher.

If my memory serves me, we had 3 and 4 Xrays of each chip in our investigation run.
I'm not sure how many total Xrays were done. David will probably know.
So, Xraying a chip can add $23 to $43 to the cost of slabbing a chip.

Now reading the Xrays is a different animal. I got cross eyed looking at them.

Thanks to the good "Doc" for joining our little investigation. It was enlightening and fun.
Hopefully soon, it will be available to all.