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don't get frustrated natural stones will never act same.
There is always differences among them.
Keep good work up and good luck. let us know the result doesn't matter good or bad.

It is ok. I do understand it is not easy to take picture of the edge.
My next question is About the smoothness?
Do you think you get maximum out of your Coticule? usually (not always) coticule...

i would suggest.
all pictures try to have in same position and same amount of light.
it is so hard a little movement changes everything.
Second.
please make no more then 100x magnification. it is...

Robert
Sorry to say light effect,x size and fact is we see the bevel not the edge.
it is hard to tell which edge is better or worse?
if i want to guess
i would say edge one is the sharpest...