I use Coors ceramic mortar and pestles. I bought my last one on the mid 1980's. It's never given me any trouble. The company got renamed at some point. It's now CoorsTek out of Golden Colorado, USA. Easy to find online.
They have a sturdy, tough construction, and are used in laboratories worldwide.
The key feature I like about these sets is that the pestle ...
A granite mortar and granite pestle; this combination will do everything.
The granite is hard and dense and will not chip under regular usage.
You need to remember that the mortar and pestle must be harder than what you need to grind.
Serious Eats Mortars and Pestles is a good read.