NATIONAL GEOGRAPHIC Break Open 5 Jumbo Geodes - Earth Science Kit with 5 Premium, Extra-Large Geodes with Crystals, Goggles & Display Stands, Science Gifts, Fun Stuff for Kids (Amazon Exclusive)

Un coffret bien rempli avec des géodes de bonnes tailles. Pas encore ouvertes.

We have only opened the smallest geode using the pointed end of the tool shown in the picture. He found it easy to open. However, we tried to open one of the larger ones, but it proved to be more challenging. I’m glad I bought the tools because using a hammer alone wouldn’t have worked well. We’re excited to open the rest of them. I did not find the process messy. Updated 3/16/26 One geode was solid. My son lost interest before I realized it was solid because he was not able to crack it open. I suggest if one seems too difficult, move on and return to it last. I still recommend this; it was a fun activity, plus the sparkly geodes are easy to display and make a great keepsake. Hope this is helpful!

Got these for my youngest as he wanted something chonky, they are about the size of a snowball for an adults hand. Loads of fun in them, and value for money, the colors have not disappointed

Bought this for my friend’s son who is a young rock lovers. He loves it! Yet, it actually very hard to break and require support from adult to open it. Buy it if you know his / her parents won’t mind to help the little explorer. It’s a good experience. I think this box sets is in good portions. I know there is another box set that has more stones but charge just a little bit more. Very tempting, isn’t it? But after reading the reviews, the version with more stones brings higher expectations. So when the little explorer finds all the stones are actually similar, they become disappointed. And the helpers get disappointed as well (according to my friend, it requires quite some efforts to open each stone). So 4pcs version is a good experience. 10 pcs will be too much.

Lots of fun. Excellent gift