Actually, it's hardly a challenge ^.^ Because Japan and South Korea has been making mineral sun protection powders in both loose and compact forms since, like, the mid 2000's. Check cosme.net for the Japanese ones if you don't believe me, I don't read Korean so I don't know of an equivalent reference. Anyway, when it comes to loose or compact powders, you have a whole spectrum that spans from a base makeup powder with a tiny bit of [pathetic] sun protection to a more serious sunblock powder with or without any color.
This 5g jar of UVLab Mineral Powder SPF50 PA+++ would be the latter, a physical sunblock powder without any color at all.

