@ HofmannBlotter: thanks, I'm not stressing about the effects of 2C-D but more about the fact that something else could be in one of those pills ^^
@ zn13bt, spacejunk: would you still be suspicious if it was from a well-known smartshop?
@ Solipsis: about the scale, I did the weighting yesterday and it was pretty good. Measurements had a pretty good replicability.
I actually measured each pill (I did triplicates) and added that and got a total of 1,128 g. I crushed everything, and weighted the total powder and got 1,06 g. That means I've lost 68 mg in the process, which is roughly 12 mg 2C-D... While crushing I was breathing some powder, so I guess most of those 68 mg went into the air, and the rest stayed on the mortar / pestle and weighting tray and my fingers.
I separated the powder into 8 amounts of 13 mg each (roughly 23 mg 2C-D), dissolved one into 100 mL (there is some precipitate), and made 7 parachutes. I've started testing the supertiny amounts from the solution. So far, no problem.
P.S.: by splashing, I meant that I put a tiny amount of powder on a cristallisoir (upside down), and wanted to add just a few drops of water to that, but when I pressed the syringue, the water got out of it under a lot of pressure (you know, when you get that last drop out of a syringue, and it "pops" out) so the water got onto the powder but at the same time was splashed everywhere...