That is great advice! Particularly about the refining.
Especially when one considers the cost of chemicals, the inefficient or perhaps unsuccessful recovery of the values that the beginner is inevitably destined to experience and the overall dangers that the process exposes you, your family and your property.
In the end, it is usually better to simply sell the material outright and not mess with the chemistry!
However, for those who are interested in learning more, there is a wonderful site devoted to that very subject.
It is the The Gold Refining Forum at
http://goldrefiningforum.com/ and is the ultimate resource for learning about refining.
But first you must acquire the material and kgryczan's suggestions are spot on.