I just received our box, which is going to be a surprise for my kids when they start homeschool after winter break. I am impressed! Such a great variety is included and these are nice rocks. I'll be choosing an area in the yard where I'm going to bury them in the dirt for the kids to excavate. A gem and mineral guide is included so once they find any rocks, they'll be looking them up to chart what they are. Can't wait!
I really like this collection and so does my daughter. When it first arrived, I emptied them out onto a tray and we just had fun looking through them. She was naturally interested in some of them which drove her to research them in the little book that was provided. I look forward to using it to study 4th grade geology with my daughter and maybe have her develop a passion for geology.