I think localities (e.g. like Pargas for pargasite), composition (e.g. like chromium for chromite), and properties (e.g. like carmine for carminite) are all great inspirations for root-names to build systematic names  In contrast to names derived from localities, composition or properties, I absolutely despise naming minerals after people. Long-dead people who made major contributions to the science aren't necessarily terrible choices (although we seem to always find out about their darker sides years later and then end up having buyer's remorse). Names after living people shouldn't even be allowed... names after mentors and colleagues just feeds into cronyism and narcissism, and we have enough of all that in the world already. There's even a mineral named after a Russian actress (chursinite), whom I find no obvious connection to mineralogy other than perhaps it was fantasies of her that got the authors through those lonely nights in the Kyrgyz mountains? Inspiring? For the authors, perhaps. For the rest of us? I suspect few of us care.