The FTB Forum is now read-only, and is here as an archive.
To participate in our community discussions, please join our Discord! https://ftb.team/discord
You can, but chances that anyone of the FTB team will actually think it'd be worth making is very low, I'd think. Still, maybe some of your ideas could be used as inspiration by them or by other pack devs.
GTCE has small dust piles on the surface that give an indication of what kind of metals are in the vein below it, both making veins in general easier to find and making the vein you are looking for easier to find. An alternative to this is how FTB: Interactions does it, with a custom flower...