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NATIONAL GEOGRAPHIC Jumbo Glow in the Dark Crystal KitNational Geographic Toys

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National Geographic Jumbo Crystal Growing Kit - Grow Your Own Giant Glow in The Dark Crystal in a Few Days with This Crystal Making Kit, Science Kit, Grow Crystals for Kids (Amazon Exclusive)

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Size	Large
Brand	NATIONAL GEOGRAPHIC
Theme	Geology
Age Range (Description)	8 years and up
Item dimensions L x W x H	11 x 3 x 12 inches

About this item

ASTOUNDING CRYSTAL MAKING KIT FOR KIDS! Grow an awesome crystal in just a few days that's up to 3x larger than those in our other crystal growing labs. You'll also get a fascinating fluorite specimen! This is seriously fun geology for kids!
WHAT'S BETTER THAN GROWING YOUR OWN CRYSTAL? Growing a crystal that glows in the dark! Kids will be amazed seeing all the details of their jumbo, glowing crystal with the lights off! This crystal growing kit is an unforgettable STEM toy!
CRYSTAL SCIENCE FOR KIDS IS EASY! Kids love crystal growing thanks to our easy-to-follow instructions. They will mix, pour, and watch as this giant and amazing crystal takes shape, then learn all about crystal science in our detailed learning guide!
A FANTASTIC GIFT FOR BOYS AND GIRLS. This jumbo crystal growing lab is an awesome gift! It's so much fun to grow your own crystals, and the resulting crystal specimen is something kids will absolutely treasure!
HIGH-QUALITY EDUCATIONAL TOYS - We're proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service. If your experience is less than stellar, let us know and we'll make things right!

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Product information

Product Dimensions

11 x 3 x 12 inches

Item Weight

13.4 ounces

ASIN

B08TGG7ZYQ

Item model number

NGJUMCRYSTAL

Manufacturer recommended age

8 years and up

Best Sellers Rank

#32,288 in Toys & Games (See Top 100 in Toys & Games)
#354 in Educational Science Kits

Customer Reviews

4.0 951 ratings

4.0 out of 5 stars

Release date

February 22, 2021

Manufacturer

JMW Sales, Inc.

Warranty & Support

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Not suitable for children under 8 years. For use under adult supervision.

Top Brand: NATIONAL GEOGRAPHIC

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Your purchase has purpose!

Every purchase helps support the global nonprofit National Geographic Society in its work to protect and illuminate our world through exploration, research, and education.

Product Description

National Geographic Jumbo Crystal Growing Kit

Grow an awesome, jumbo crystal in just a few days that's up to 3x larger than those in our other crystal growing labs. Just mix, pour, and watch as this giant glow-in-the-dark crystal takes shape! Kids will also learn all about crystal science in our detailed Learning Guide!

Grow an incredible, massive, glow-in-the-dark crystal!

With the National Geographic Jumbo Crystal Growing Lab, kids can easily grow a giant glow-in-the-dark crystal!

This kit includes everything kids need to grow and explore their giant crystal: white crystal growing powder, glow-in-the-dark seed rock, wooden spoon, magnifying glass, a fluorite specimen, and Learning Guide with instructions.

Kids will marvel at the massive crystal they create! This easy-to-use crystal growing lab has everything you need to grow a crystal that's up to 3x larger than the crystals in our standard growing labs.

Simply mix the growing powder with hot water, add the glow in the dark seed rock, then watch as this amazing crystal takes shape over the course of just a few days!

Kids will learn about the fascinating world of geology first-hand as they see their crystal grow and expand. A detailed learning guide adds even more depth to the educational value of this kit, with fascinating insight into crystal science. Plus, kids will receive a genuine fluorite crystal specimen to add to their rock collection!

This kit makes a great gift and is a fantastic geology-themed activity for boys and girls. Order your Jumbo Crystal Growing Lab today and let the fun begin!

We make the highest quality hands-on science toys, and all products are backed by exceptional service. With a mission to inspire people to care about the planet, the National Geographic Society is one of the world’s largest nonprofit scientific and educational organizations.

national geographic science toys stem kits for kids

What's in the box

Crystal Growing Kit Complete

Fluorite Specimen

Detailed Learning Guide

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Customer reviews

4 out of 5

951 global ratings

How customer reviews and ratings work

Customers say

Customers like the gift idea of the science fundamentals kit. They say it's a great gift for little rockhounders or young rock hobbyists. However, some customers report issues with the performance and dissolved parts. They also have issues with crystal growth. Customers also disagree on ease of use, and appearance.

AI-generated from the text of customer reviews

12 customers mention12 positive0 negative

Customers find the experience of the science fundamentals kit fun, interesting, and easy to use. They also say it's a great project for kids and an amazing learning opportunity.

"...for the crystal to complete it's growth and it's kind of fun to watch the progress." Read more

"The kit was interesting but the instructions I followed first were overly complicated. This led to confusion and poor performance of the product...." Read more

"...I expect more from NatGeo. Some of these kits have been really fun and cool, and others have been complete busts for one reason or another...." Read more

"...Other than that they were really fun to grow and look great!" Read more

9 customers mention9 positive0 negative

Customers find the science fundamentals kit a great gift. They say it's easy to use and a good experience. Customers also mention that the packaging looks nice.

"Great gift for young rock hobbyist! Scientist in the making…young person really loves it! .recommended." Read more

"...Packaging looks nice" Read more

"...My daughter enjoyed the process. It makes a good gift." Read more

"My Ten Year Old loved this! It’s a great gift." Read more

25 customers mention14 positive11 negative

Customers are mixed about the appearance of the science fundamentals kit. Some mention that it looks interesting, makes very nice crystals, and is cool. They also love the glow effect and enjoy watching the crystal grow. However, some customers say that it didn't glow in the dark.

"Makes very nice crystals" Read more

"...Also, the crystal itself doesn't glow, and especially not like the photo. The "seed rock" glows a bit, but the crystal you grow on it is just clear...." Read more

"Loved the glow effect" Read more

"...The crystals came out really nice. They definitely don't look like the item on the box and are more fragile than the smaller ones, but that's OK...." Read more

23 customers mention7 positive16 negative

Customers are mixed about the ease of use of the science fundamentals kit. Some mention that the instructions are clear, easy to set up, and helpful. Others say that the directions are off as far as how much water to use, and that it's virtually impossible to do the kit.

"The kit was interesting but the instructions I followed first were overly complicated. This led to confusion and poor performance of the product...." Read more

"...It came out great, but instructions are off as far as how much water to use" Read more

"...He would check on the progress of his rock everyday. This is easy to use and my son loved his rock at the end... so much so he shared it with many..." Read more

"...Geo.1. The kit came with the wrong instructions...." Read more

27 customers mention3 positive24 negative

Customers are disappointed with the crystal growth of the science fundamentals kit. They mention that crystals grew on everything but the rock they were supposed to grow on, and that they didn't get a large crystal. Some say that the rock did not grow like it said, and they got very tiny crystals. Overall, some customers feel the kit is a waste of money and does not glow in the dark.

"...Got it to mostly work. They were small and grew all over the container, but I managed to chip out a few good pieces...." Read more

"Possibly (probably) human error on our behalf, but we couldn't get any crystals to grow over the course of a week." Read more

"...Unfortunately, it just didn’t work out. The Crystal didn’t grow as big so it was a bust." Read more

"...The small size one worked, this one did not grow." Read more

27 customers mention6 positive21 negative

Customers are dissatisfied with the performance of the science fundamentals kit. They mention that they did everything as directed, yet the product did not work as expected.

"...This led to confusion and poor performance of the product. Know what I know after, another kit would likely get bigger and do better." Read more

"...close supervision followed all the instructions to a tee and it didn’t work at all. He’s been wanting a Crystal growing kit for so long...." Read more

"This did not seem to work at all. We got very tiny crystals and we followed the instructions perfectly...." Read more

"...It came out great, but instructions are off as far as how much water to use" Read more

20 customers mention0 positive20 negative

Customers find the dissolved parts of the science fundamentals kit to be non-existent. They say the powder would not dissolve in boiling water. Some customers also mention that the crystals did not dissolve fully.

"...The crystal "salts" never dissolved in the boiling hot water as directed and thus we are not growing a crystal but rather waiting for an ugly chunk..." Read more

"...The powder had no way of dissolving. After a quick search of the comments we found this was a common problem...." Read more

"Like some of the other reviews I also did have issues with dissolving this powder into the amount of liquid they suggested. Got it to mostly work...." Read more

"Followed the instructions to the letter but the powder wouldn’t dissolve...." Read more

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Steve

I'm not sure if I did it right, but it turned out cool.

Reviewed in the United States on January 28, 2024

Verified Purchase

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I really enjoy how my crystal growth turned out. This product is designed for children but as an adult I'm not entirely sure I followed the instructions properly. I was definitely expecting more of a single rock like structure but my crystal ended up taking the shape of the bowl I put it in. At first I didn't think the crystal would come out of the glass bowl I grew it in but with just a little poking it came free. It takes several days for the crystal to complete it's growth and it's kind of fun to watch the progress.

3 people found this helpful

Helpful

Bee K.

Nice crystals

Reviewed in the United States on March 2, 2024

Verified Purchase

Makes very nice crystals

Helpful

Nathan W.

Some good and some bad.

Reviewed in the United States on March 10, 2024

Verified Purchase

The kit was interesting but the instructions I followed first were overly complicated. This led to confusion and poor performance of the product. Know what I know after, another kit would likely get bigger and do better.

Helpful

Rachel Liebler

doesnt work, and will ruin your glass

Reviewed in the United States on October 30, 2023

Verified Purchase

This is the second thing I ordered for my sons birthday that turned out to be total junk. I followed the directions to a T, and this isn't my first time doing crystal growing. The crystal "salts" never dissolved in the boiling hot water as directed and thus we are not growing a crystal but rather waiting for an ugly chunk to dry out to pry it out of my glassware. This isn't a user error, rather something wrong with the product. my son got let down twice on his birthday and it was really dissapointing. Don't bother

17 people found this helpful

Helpful

Richtor Geiler

Good gift

Reviewed in the United States on February 24, 2024

Verified Purchase

I gifted several of these this passed Christmas and all the kids loved it. Would recommend.

Helpful

Johns Family

Poor instructions

Reviewed in the United States on December 13, 2023

Verified Purchase

This is a "jumbo" version of the normal NatGeo set that's sold in stores. It comes with three times the powder stuff so that it can make a bigger crystal. My issue is that the instructions that came with it were identical to the small set, right down to the amount of water to use. I was skeptical, but my kiddo and I followed said instructions perfectly, because it's all about being precise and learning science. I figured maybe it was supposed to have a higher concentration. Unfortunately, we stirred and stirred for ten straight minutes in the hot water and couldn't get it to dissolve entirely--it was physically impossible. We ended up having to transfer to a much bigger container than it said and having to add more water and more water until (go figure) the concentration from the original set was reached. Then it dissolved no problem. Unfortunately, by then, we were half an hour into stirring this stuff, and kiddo was frustrated that we weren't following instructions and things weren't working. It took all the fun out of it.

It should also be noted that you need a big glass mixing bowl for this. The stuff seems to wash out okay after you're finished, but plan on a BIG vessel. It doesn't come with anything to use.

Also, the crystal itself doesn't glow, and especially not like the photo. The "seed rock" glows a bit, but the crystal you grow on it is just clear. Bit of false advertising there. It's cool stuff... why are they deceptive about additional features?

Overall, this was super frustrating. I expect more from NatGeo. Some of these kits have been really fun and cool, and others have been complete busts for one reason or another. They need to do more testing and quality control on their end before releasing products.

17 people found this helpful

Helpful

Donna Wahlig

Gigantic crystal

Reviewed in the United States on December 11, 2023

Verified Purchase

It states to use the whole package, but you need to use 4X the amount of water to dissolve the package and a really BIG bowl. It came out great, but instructions are off as far as how much water to use

7 people found this helpful

Helpful

Michael Shane Ison

Amazing

Reviewed in the United States on February 18, 2024

Verified Purchase

Loved the glow effect

Helpful

Top reviews from other countries

Translate all reviews to English

Amazon Customer

Recipient enjoyed watching it grow but it did not grow as big as it said

Reviewed in Canada on April 13, 2024

Verified Purchase

Did not grow as big as it said

Client d'Amazon

A ma satisfaction

Reviewed in Canada on April 28, 2024

Verified Purchase

Ma petite-fille l'a beaucoup aimé.

Translate review to English

Gary Khan

Didn't work at all - Wrong Instructions

Reviewed in Canada on December 28, 2023

Verified Purchase

This comes with the standard size crystal growing kit instructions but is the jumbo size. You end up putting the wrong amount of water and it leaves the kit basically unusable. You can guess the correct amount of water and try and recover it but at the end of the day it wasn't an enjoyable experience with the kiddo who was initially very excited but was frustrated by the end of the entire experience. Would not buy again.

2 people found this helpful

N. Mac

Cool idea, but kit doesn’t work as is

Reviewed in Canada on February 29, 2024

Verified Purchase

This was bought and given as a gift. The kit wasn’t working, so I went back to read more reviews. It seems like the kit comes with the wrong instructions, which results in the powder not dissolving and the crystal not growing.

One person found this helpful

Directions are wrong but theres hope.

Reviewed in Canada on January 20, 2024

Verified Purchase

The directions ask you to mix 200ml of water into the solution and stir till it’s dissolved. I probably stirred close to 45min and nothing was dissolving. I quickly jumped onto the reviews and someone said to add 4x the water. I ended up adding 1000 ml of water. You can see my results from day 1 to day 2. I’m giving it 2 stars because the directions are completely wrong and I was close to giving up but Im glad I pushed through because my daughter is very excited about the progress. Also i put a towel over it and then a paper bag and it seems to be growing well in the dark.

2 people found this helpful

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National Geographic Jumbo Crystal Growing Kit - Grow Your Own Giant Glow in The Dark Crystal in a Few Days with This Crystal Making Kit, Science Kit, Grow Crystals for Kids (Amazon Exclusive)

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Product Description

National Geographic Jumbo Crystal Growing Kit

Grow an incredible, massive, glow-in-the-dark crystal!

What's in the box

Videos

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Our results for this Crystal Growing Kit and some TIPS

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Customer Review: I'm not sure if I did it right, but it turned out cool.

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My Take - National Geographic Jumbo Crystal Growing Kit Glow

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All your questions about this Crystal making kit answered!

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