Even though the web link suggests lower content, I believe the website can be utilized as an incredible source for students to reference to. I especially enjoy how interactive some of the links are, as well, how the website links to many others with much more in depth knowledge on the actual minerals.
As well, here is a full video on rocks from the one and only Bill Nye. The video can be served as a hook, as well as dissected into pieces to relevant curriculum.
Both the site and video can serve to motivate students through entertainment, inquiry, and in depth knowledge. However, I believe place based education along with these elements, allowing students to feel, observe, and understand where the rocks and minerals can originate from is equally if not more important to fully understand the subject.