At over 700 pages long, I go to Strack's book whenever I have a question about pearls.

There is information about the history of pearls, all of the different mollusks that produce pearls, pearls the are nacreous and non-nacreous pearls, natural pearls, saltwater and freshwater pearls and other...types of pearls. So, I try to break down all of this information to get you a taste every week. 

I hope you find what you want in my Pearl Knowledge blogs, but now you can go to the source, if you want to know everything.