NATIONAL GEOGRAPHIC Break Open 15 Premium Geodes Science Kit - Goggles, Detailed Learning Guide, 3 Display Stands, Great STEM Science Toy & Educational Gift

The person to whom it was a gift for really enjoyed it. Hard to crack the rocks, obviously! But nice stones when opened. Great for a person who is a rock hound! Fun kit.

Ordered these a few times now as a family fun activity. I appreciate the variety.

This came up under searches for kids party activities and we loved the idea for 3rd graders. It worked pretty well and the kids really got into it. However, there were a few duds and at least one that had almost no crystals. So those kids got a second round. Also, there were two big awesome ones and that didn’t seem fair, so we took those out ahead of time. So in the end, there were enough geodes for about 8 kids. Some were extremely hard to break. Didn’t work for the kids to do it themselves, even with eye protection for all. It had to be done outside on concrete. But they watched and cheered while dad broke each of theirs. Pretty fun in the end. I just wished for party purposes they had been more equal in size, but I realize a party is not the only use case for this 15-pack.

My 11 year old son really enjoyed this Geode Kit even more than he expected! He is at the age where he is hard to shop for aside from video games and electronics, I wanted something fun for him and I to do together as well as a learning tool. He has shown interest in rocks, gems, and crystals so I thought this would be right up his alley and boy was I right. Since cracking open the very first geode his curiosity and excitement began to intensify and I loved helping him out. This kit really provided a nice assortment from solid to hollow and a fair variety of size and colors also. One of the geodes was actually filled with a bright sand colored dirt which both of us thought was really cool, he immediately said "I wonder how old this dirt is" which let me know he was getting a hands on learning experience. We will definitely be interested in purchasing more sets just like this one and I won't be so lost come his birthday as to what to get for him or recommend to others. The set does come with safety goggles which he put on and used without my having to ask as well a small information booklet on the different geodes. I definitely recommend purchasing a chisel and rock hammer to get better splits on the rocks but we made do with a flat head screw driver and house hammer. Some of the solid heavy geodes were a bit hard to break and we even ended up using a sledgehammer on it! Another tip I recommend is to break them on a hard surface and place the geode inside a zip lock prior to cracking to keep all the bits contained. Overall I am extremely pleased with this purchase and it has definitely become one of our new found hobbies thanks to this kit.

Awesome! Great for kids.

Fun activity to do with my kids, but half the geodes were solid, like quartz. One big rock we couldn't even crack open. Out of 15, 2 were hollow with a beautiful crystal inside. All were white except one solid stone had gray/blue hues.

Our 9 year old grandchild loved them!

REALLY great gift for a budding geologist. My son loved breaking the rocks open and looking at each one. Some break easily as they’re more cavernous inside, and others definitely take some adult help as they’re pretty solid inside. Would buy again!