Review on Agate Burnisher Knife Inches BRN 620 06 by Carol Miller

Compared to most agate polishers you can find this one was affordable and looked good, looked well made etc. I was pleased and put it away as it wasn't ready to use yet. . Well the time came, maybe a month later, and the agate just broke off and I didn't even touch it. How can this even happen? The stone isn't meant to be heat sensitive (not that it's anywhere near a heat source) and it was hidden from prying hands (my first stone was stolen before I'd even had it a week). I can't swear it wasn't broken in transit as I didn't check it that closely, but it wasn't broken when it arrived either.