National Geographic Mega Crystal Growing Kit - Grow 6 Crystals with Light-Up Stand, Science Gifts for Kids 8-12
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Availability:
Only 5 left in stock, order soon!
Arrives
Wednesday, Oct 29
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Style: 6 Crystal Lab
Features
- FAST GROWING CRYSTALS IN 6 COLORS - Red, Green, Blue, Purple, Yellow, and Glow in the Dark; Crystal Chemistry has never been so fast (grows in 3 - 4 days), fun and colorful!
- GROWING IS EASY Easy-to-follow instructions and 2 silicone growing chambers make growing your crystals. Our new clear crystal seed rocks can be left in your delicate crystals and grown crystals can be placed directly into your display
- NIGHT LIGHT DISPLAY Show off your 5 favorite home-grown crystals on the included light-up display
- START A ROCK COLLECTION Includes 4 real gemstone specimens and a STEM learning guide teaching all about crystal formation
- AWARD-WINNING PRODUCTS - Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!
Product Dimensions: 7.87 x 4.92 x 9.84 inches
Item Weight: 3.28 pounds
Item model number: NGMEGACRYSTAL2
Manufacturer recommended age: 8 years and up
Release date: May 27, 2020
Manufacturer: JMW Sales, Inc.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Oct 29
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: 6 Crystal Lab
My granddaughter Ellie and I loved making these crystals and waiting the week gave her a schedule where she had to check him every day to make sure they were growing so she had a sense of responsibility that she was helping him grow by checking in on him she's only three and a half but she's learning responsibility already the crystals came out beautiful
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Reviewed in the United States on September 18, 2025 by Just Mark27
Style: 6 Crystal Lab
Got this kit for my son last christmas, we have finished growing all the crystals. Such a fun activity to do with your kiddo on a rainy day. Kit came with everything we needed and the instructions were easy to follow. Loved using this kit because it also leaves your kid with somthinf they can keep. My son is 10 years old and he was able to do most of it himself!
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Reviewed in the United States on June 17, 2025 by Rebekah schlenker
Style: 6 Crystal Lab
Easy to grow some crystal at home with the kid. Heat some water, dump some powder in, then let water cool, then dump a growing rock thing in the cup. Let sit a couple days and POW/WOW its done. Taking them out and digging the growing rock thing out was a no go. These things are like fine china that break just by breathing on them almost. no lie in my pictures I show they didn't get huge but about the size of the bottom of the growing cup. the tall tower crystals break off so easy and I really hoped that they would dry harder but NO they are still delicate little crystals made only to look at and not touch. at least the plastic LED light base is cool. I plugged mine in to a usb hub in the corner of my kids room to act as a night light. they reflect off the mirror and really brighten up the corner. I do worry that my jerk of a cat might tap them one day and bust them all to hell. good news is that you can just buy a cheep pack of powder and seed growee rock from any random store and use the cool cup to do another batch of crystals. I'll prolly end up buying another one once this one burns out or breaks.
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Reviewed in the United States on November 29, 2021 by Amazon Customer Amazon Customer
Style: 8 Crystal Lab
Fun crystals to grow, I let them grow for about 2 weeks and they turned out really well. The only issue I had was removing them from the seed rock, I completely destroyed a crystal trying to remove it and didn't bother with the other crystals. The light up display is a cool idea and based on other reviews they turned out great, I just had troubles removing the crystals without destroying them. Photos were taken with a DSLR and a macro lens.
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Reviewed in the United States on August 22, 2024 by Matt Matt
Style: 8 Crystal Lab
This is so cool! My son and I enjoyed making these crystals together. He now displays them in his room.
Reviewed in the United States on June 27, 2025 by Kristen Fasnacht
Style: 6 Crystal Lab
La entrega fue puntual y dentro del tiempo acordado. El kit permite crear cristales grandes y coloridos, y la base iluminada resalta los resultados de forma espectacular. Los materiales son seguros y de excelente calidad. Cumplió totalmente con mis expectativas y es un regalo perfecto para jóvenes curiosos.
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Reviewed in the United States on October 14, 2025 by Jose Luis Dovale
Style: 6 Crystal Lab
Grew a really cute crystal with this but I think I was more interested in it than my daughter was.
Reviewed in the United States on September 21, 2025 by APB
Style: 8 Crystal Lab
The media could not be loaded. So I need to revise my review. At first I was very pleased with this “Mega crystal growing lab” until we bought another National Geographic crystal growing lab. The new kit only has 3 crystals to grow in it and a sleaker lighted base but what bothered me was the differences in the instruction book and the difference in the seed rock. In the kit that I am reviewing the instructions say after boiling a cup of water to pour a small amount of the crystal growing powder into the hot water and stir it with the starring stick until it dissolves, then pour in a little more powder and keep stirring, continue pouring and stirring until no more powder will dissolve into the solution. This process should take no more than five minutes Then it says to carefully pour the crystal growing solution into your crystal growing chamber, then let the solution cool for 15 minutes and then place in the seed rock and to leave the experiment undisturbed for 7 to 10 days while the Crystal grows. We followed these instructions to a T. Now the new set with only three crystals in it, the instructions say to pour ALL of your crystal growing powder into the growing chamber and then pour the cup of boiling water into the crystal growing chamber and to stir for two minutes until it is fully dissolved then let cool for 10 minutes And carefully place the seed rock into the solution and it says to let it sit for 3 to 4 days but for best results, let it grow for seven days. We did this two days ago. It hasn’t even been a full 48 hours and the crystals are already bigger in two days than the ones we made from this kit following this kit instructions that we let sit for a week and a half. We only made four crystals out of this set that I’m reviewing but two of those four we could not pull the seed rock away from the crystal for the light of the base to shine up through the crystal so I’m having to take a Dremel tool and try to drill it out so the light will shine through it. As I said earlier, the seed rocks from this other national geographic set were different. They were kind of smooth, so I’m thinking that they’ll pop out easier but the two that I was able to remove from this set one of them removed fine but the second one the crystal actually broke while removing it and then like I said two more I couldn’t even get to remove so I will post pictures of what I have right now and then in a few days once these other crystals are finished growing. I will update my review again to let you know if those seed rocks came out easier, and I will also share pictures of both instruction guides, but if you are going to buy this kit, I suggest going by the instructions that say to dump all of the Crystal powder in at once because doing it a little bit at a time in a little bit at a time the water cools off and you can’t dissolve as much Crystal powder so your crystals don’t grow as big. I still think it’s a great experiment to do with your kids. I just wish that the instructions were the same as in the other set so we would’ve got a better result. Also I wanted to add that it truly is just the difference in the instructions that made the difference because the red crystal and the glow in the dark crystal that we are growing now came out of the mega crystal growing lab set. Only the crystal powder for the blue crystal came from the new set. So use the instructions pictured here that say use all the crystal powder! My 5 year old son and I had so much fun making these crystals. It’s a good value and easy to use and clean up was a breeze. The hardest part was finding a place in my home to set it where it would be undisturbed while the crystal grew. But when it was finished we had big beautiful crystals! I love the lighted stand to display your crystals on but you have to be super careful removing the crystal from the silicone growing container or you will break shards off of your crystals. Totally worth the money! We still have a few more to grow. I personally can’t wait to do the glow in the dark one!
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Reviewed in the United States on April 17, 2025 by Casey Jordan Casey Jordan