Deposit types

When you are talking to companies, they often talk about the various types of mineral deposits.  If you don't have any knowledge in geology, you might not have any idea what they are talking about.  What it really matters is, is it going to be an economic deposit?  In the next several post, I am going to post the basics of the deposit types and layout the typical tonnage and grades.  I got those information from various textbooks and online.  I will quote the author and the source so if anybody is interested in it can look further in those books.