If you want to take acid I would recommend a bunk police kit to test it before you take it, its worth while with all the other crap they pass off as Lucy like nBOMEs which can be rather dangerous, that and I just don't trust my taste buds enough to rely on metallic tastes being the key identifier. Nonetheless I'm sorry it turned out the way it did and glad that it didn't turn out worse, please be careful in the future friend!
Here's a couple pics from acid I tested with my own kit via TLC, as you see under the blacklight there are no other constituents mixed in and is pure, then drop it with Ehrlich to make sure it turns purple for LSD.
Are the 3 X's where the samples where originally placed?
That is correct, I think the plate only sat in the chamber for around 10 min, I thought it was dry by the looks of it, but as you can see under the blacklight the top hadn't finished drying yet.