Wiley Horne--So. Calif.
Warren,

That's really interesting, and since I know so little about novaculite, it's mysterious. I think I understand that novaculite is SiO2, and that it is graded by density (specific gravity), i.e., smaller more tightly packed crystals are 'hard' or 'translucent' Arkansas. And that's my limit.

And the dense rock retains cutting power after decades of use and doesn't glaze over or slough off material--can someone comment on why this is? Or straighten out my thinking?

I understand it works, whether I get it or not, but am just curious. Perhaps others are as well.

Thanks,

Wiley