I generally use white tourmaline powder (from ion trading, Japan) because I have compared it to black and it's more powerful. I use black when I run out of white, it's almost as good. 3 micron white tourmaline is the best I've tried, but 40 micron is also quite good.
The mix you describe will be very powerful. The only reservation I have is directly mixing the barium titanate and graphene nanoparticles. When you use a generous helping of barium titanate and graphene (and who wouldn't want to?), you may get an oxidizing reaction between those two ingredients, causing bubbling. I'm a mad scientist, not a qualified chemist, but my guess is the graphene may be converted to graphene oxide, which is ok but let's just say I don't like chemical reactions taking place when I make my formulae.
Your mix could also use some additional crystal component, such as fine silicon carbide. You don't need much, but it would help sharpen things up. Works great in combo with the barium titanate.
Maybe you could consider applying layers instead of mixing everything together. I have found that shungite works best when it's kept on its own layer. But if that's not practical, a total mix will still be great.
The mix you describe will be very powerful. The only reservation I have is directly mixing the barium titanate and graphene nanoparticles. When you use a generous helping of barium titanate and graphene (and who wouldn't want to?), you may get an oxidizing reaction between those two ingredients, causing bubbling. I'm a mad scientist, not a qualified chemist, but my guess is the graphene may be converted to graphene oxide, which is ok but let's just say I don't like chemical reactions taking place when I make my formulae.
Your mix could also use some additional crystal component, such as fine silicon carbide. You don't need much, but it would help sharpen things up. Works great in combo with the barium titanate.
Maybe you could consider applying layers instead of mixing everything together. I have found that shungite works best when it's kept on its own layer. But if that's not practical, a total mix will still be great.