Check out the FAQ.
http://faq.gardenweb.com/faq/cacti/

If you do a search on the internet there are lots of sites to give you all the info you want or need.

this is a more common question than you may think. this question is not the most simple to answer. there are many threads here and other places about this very subject. this is a subject that has been discussed at length many times here, and has become a hard topic to start back up. you can find all the info that you can use, if you are willing to work for it. search this forum and read a lot. good luck and remember that a jade plant is also a very tough plant, it can withstand a few mistakes.

Al's gritty mix
P.S. gypsum is not an equal part

A good thread about fertilizer

All important watering

Doug