Any and all. The more you know the more you benefit. 

Does anyone have or able to make a list of specific properties of gems and their effects/uses? Thanks and much appreciated!

That makes sense and is what I figured after putting thought into it. Especially since it would be available to anyone if everything was listed on the site.

So I was reading up on the Magnus Opus on JoS, with no intentions of starting, but I was wondering if that was all of it. Mainly because there's no definitive "end" to it. I understand it's a process, but maybe I'm just not understanding fully. I understand you need both parts of the elixir but...

That's understandable! Was there a backlash of the opposite element? I also wasn't aware that there were vibrations for the elements. Haven't seen it on JoS anywhere that I've looked. Maybe I haven't looked I the right places!

What effects does invoking each element have? Say for example, invoking fire can cause a backlash of water which can incite depression. What negative effects do the others have? Guess I could read up on the elements myself...