[Sookie]

I hear a lot about whether a Yorkie's coat is cottony or silky. Are they the only two types? And how can I tell whether my puppy's coat is cottony or silky? She has a very very thick coat right now. Also, I got her AKC certificate and pedigree Saturday and she is Blue & Gold. Her sire is also Blue & Gold but her mother is Blue & Tan. This is confusing to me. How can anyone say which is which? What is the difference between Gold and Tan and what is the difference between Blue and Black?