How to break a gem og Diamant?

[Treebore]

Naturally not, since cleavage planes are intrinsic to crystals, and have nothing to do with imperfections.

Diamond is hard and strong. But it isn't tough: it is susceptible to cracking.

Regards,


Agback

Fracture lines and cleavage planes are the same thing, at least when I use the terms. I forgot that the planes exist because of how the structure of the crystal lattices lined up.

 

[Agback]

Fracture lines and cleavage planes are the same thing, at least when I use the terms.

That is what I figured.

I forgot that the planes exist because of how the structure of the crystal lattices lined up.

Which was my point. You had inadvertently given the impression that they were caused by imperfections, and that gems lacking them might be rare (rather than impossible).

Regards,


Agback