Geologist Treasure STEM Mine

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Regular price $63.99 Save Liquid error (snippets/product-form line 69): Computation results in '-Infinity'%
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  • 10 geodes
  • Pickaxe
  • Safety goggles
  • 16 page full-color learning guide
  • Magnifying glass

Geology is all about discovering the wonders which lie deep underground. The Geologist's Treasure STEM Mine allows children to pick up a pickaxe and begin breaking open various types of geodes. These brilliant crystal formations hide many beautiful colors and properties. Children can now become better acquainted with these magnificent features of our multifaceted earth. Make sure to wear your goggles at all times when bashing geodes open.


  • Product Dimensions: 12 x 2.5 x 8 inches
  • Item Weight: 3.39 pounds
  • Manufacturer Recommended Age: 8 months - 15 years

Our SmartKidsPlanet initiative began in 2017 when 3 geeky and dedicated parents saw a gap in the children’s toys and games market. An opportunity was spotted while we struggled to find toys and games for our kids which enriched their minds and guided them toward science, art, math and construction. The trio then knew that their paths were set, establishing an online shop with a comprehensive range of intelligent toys for babies, children and young teenagers.

With offices based in California, our SmartKidsPlanet team enjoys a daily growth in our presence within the children’s educational toys market. We love our new place in life, and we love helping young minds with their growth and skill development, all while having as much fun as possible.


We ship all our products directly to you from our warehouses located in multiple locations in the West and East Coasts.

Processing Time: All orders placed after 2 PM EST will be shipped the next business day. Orders placed after 2 PM EST Friday will be shipped on Monday. 

Orders are shipped and generally arrive within 2 to 3 business days after the order is processed. Tracking information will be sent via email once your order has been processed. The tracking number may not become active for 24 - 48 hrs.

Kindly take note that due to our business utilizing multiple warehouses within the United States, orders of more than one item may arrive as separate deliveries at different times. 

Orders made to PO BOX may take up to 12 days. Additionally, we do not ship to military bases. Hawaii and Alaska

Customer Reviews

Based on 8 reviews
Bertha Bermudez murillo
Amazing and fun for everyone

I will admit, I was skeptical about buying geodes for my son. I I thought they would’t be as spectacular as as the photos, but they were amazing. So far we have opened six and they are all so unique and . It’s so exciting for my 5 year old son and honestly me as well. So far 5 out of the 6 geodes have been very beautiful. I highly recommend.

P Williams
Great mix; as expected.

I bought two boxes of it and Open 10 Premium Geodes. They are exactly as expected and are similar to the ones I’ve seen for sale at science museum gift shops, but with more variety. These will be given as part my 8-yr old’s birthday party favors along with a printed insert about geodes and instructions (better than candy and junk toys, I think). The instructions inside are clear and printed nicely with color pictures. There is a good mix of geodes with different colors, shapes, and sizes so they all don’t appear to be from the same place. For the most part they each feel fairly light, 3 of the largest ones of the total 20 feel heavy/solid, one was already broken but that’s OK since I got to see the crystals inside. Geodes should feel light since ideally they’re hollow inside. The solid ones might have pretty striations but are hard to break open. I weighed one set and it was about 2.2 lbs. I’ve also included pictures of the box, the packaging, both sets where one includes a ruler to give you an idea of their sizes. The sizes in both boxes are similar. I also included pics of the broken geode before and after washing. I’d definitely buy it again.

sorrenia dillon
It's like opening a surprise that God personally gave you........

I'm a 66 y/o great grandmother. I bought these for a set of my grandkids for a birthday gift. They said it was the coolest gift they'd ever gotten. There are 4 kids in that family, and they said "These are awesome, Gram!" So far they've opened 8 of the 10 and all are gorgeous. Not a dud in the bunch. Some are white, some are colored. Some are golf ball in size, some are as big as a baseball. I bought them and which was cheap to aid in an even break so they wouldn't shatter. They reported that the easy ones to open appeared to be the white ones, and if they were difficult to open, those turned out to be pretty colored inside. FYI. Just an observation. But, these are great fun, and a terrific educational gift for kids of any age, even the young at heart like myself loves ROCKS. I mean, who doesn't love nature?????? It's like opening a surprise that God personally gave you. What could be better? I want some more!!!!!!

Martin Gajda
Bought for 6 year old granddaughter who totally loved it. Her dad had to crack the rocks ...

Bought for 6 year old granddaughter who totally loved it. Her dad had to crack the rocks but she was right there handing him the hammer and picking up the crystallized geodes. They were very pretty. Several were solid rocks. I called the customer service line because there was a card in the box encouraging you to if you weren't 100% satisfied. I spoke with the best customer service person ever!!! Had replacement geodes in less than a week...the 6 year old actually got a total of 3 products for Christmas and all of them were of good quality and fun for the child. Great learning products.

Jose Rodas
As good as I hoped and more.

I've been buying some geodes the last couple of weeks to see what I could crack open. I find geology very fascinating, and have some more precious natural stones and thought this is a fun, cheaper alternative. When the items first came in and I saw the stones I was very skeptical about what I just bought. There were 4 quite small stones 4 small to medium sized stones and 2 fairly large stones. So I cracked the small stones open first using a hammer and chisel and was very surprised about how stunning the insides turned out to be. I figured the small stones wouldn't be much and I got a bad bag, but it turns out they were just as good as the larger stones in crystals and I did not get a bad stone out of the ten. Excellent buy and the book is a good short read and makes the finds much more interesting.




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