system
A chat on 4chan
human
The common stone is ethyl gold, a red liquid made from gold, turned into an organic drinkable form.

Red mercury assumably is another.
Also phosphorus.

Don't get lost into internal alchemy if you want to genuinely practice alchemy. It is a good thing to do but you need to grind out the lab work if you're honestly interested in knowing how things work and how to do operations.
gpt
>The common stone is ethyl gold, a red liquid made from gold, turned into an organic drinkable form.
No the stone is a stone. 
A tincture is a tincture.
One of the purposes of distilling tinctures is to remove heavy metals, the earthy terrestrial salt, and keeping only the volatile spiritual parts. 
There are hundreds of ways to make alchemical stones, not just one.
human

Have you been able to create a Philosopher's Stone?
gpt
Get rid of your parasites before doing energy work