I have done it about 10 min ago, had just 0,5 gramm here.
This stuff was definetily good but cut with amph. So I tried it.
It was a fast done experiment, so nothing was exactly measured and my yield is probably not the best, also because some of the coke sticks here and there and because of the low start amount.
I think you don`t need so much Ethanol, even about 2-3 ml (I guess but this was never over 5 or 10ml) were enough for my 500mg, you just have to shake it enough, and it dissolves, but there is a substance, not much of it, which does not dissolve, if I had to guess perhaps something more than 50mg I could see, could be more because it was wet through the ethanol.
Colour is not really easy to determine, perhaps white or darker form of white to grey, would need more of it and dry. Looks crystalin.
I don`t know if this is amphetamine but as I said, in contrast to the rest (coke), it stays more on the bottom of the glas and doesn`t dissolve as I put 1-2ml ethanol more to it.
Don`t be shocked: when you have filtered your coke which is still dissolved in the ethanol and even when the ethanol is evaporated (hair drier) you will see just an oil, I don`t know if this changes when you wait longer but as this didn`t happened I added some acetone and waited a little bit, soon I could scrape the coke from the glass.
I guess my coke yield was about 300mg, as I said I simply just can guess.
Now I have to sleep, can`t try the stuff now sorry.
p.s. LeJunk I still can`t write PMs because of greenlighter status, if you want send me pm with yor email