are the instructions in english

Hi, Our pack and instructions are both in English, our box says 4M Crystal Growing Experimental Kit on the box, not like the image shown. Mark (Inspiring Toys)

once fully grown and taken out of the liquid do the crystals remain stable

If you are careful and follow instructions and be patient then you will get some lovely crystals that we have kept for quite some time that are still ok. You can redissolve crystals and dry out and try again if you fluff it first time around.

What type of crystals are they?

The crystals are called 'monoammonium phosphate' which are a base compound, it grows into tetragonal crystals.

Very mixed reviews. Why have some been able to grow crystals and some not ?

I followed the instructions and nothing appeared to be happening and I literally forgot about it until I came back a week or 2 later!! Maybe some are just slower to grow depending on temperature they're in?

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4M Crystal Growing Experimental Kit | A Science and Chemistry Kit for Kids Ages 14+ | Grow your own Crystals, Large

Product ID: 48008126

Details

Age range (description)
60 Months to
Brand
4M
Item dimensions L x W x H
24 x 21.6 x
Size
0.5 inches
Theme
Chemistry

⏳Grow crystals in 4-7 days

🌈Multiple vibrant crystal colors

🧪7 interactive crystal experiments

€ 66.62

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Description

💎 Grow brilliance at home—because your curiosity deserves to sparkle!

HANDS ON STEM MASTERY - Ignite curiosity with 7 dynamic crystal-growing experiments designed for future scientists.
COMPLETE SCIENCE LAB KIT - Includes all essentials—safe compounds, display bases, stirring tools, and clear instructions for effortless discovery.
VIBRANT COLOR EXPLORATION - Mix and match crystal compounds to create a personalized spectrum of sparkling minerals.
FAST FASCINATING RESULTS - Watch your dazzling crystals form in just under a week—perfect for busy, inquisitive minds.
THE ULTIMATE EDUCATIONAL GIFT - Empower young innovators aged 14+ with a captivating chemistry experience that fuels STEM passion and social bragging rights.

The 4M Crystal Growing Experimental Kit offers a safe, engaging way for teens and young adults to explore chemistry through 7 hands-on experiments. Designed for ages 14+, it includes all materials needed to grow vibrant, large crystals in 4 to 7 days, fostering STEM skills and scientific curiosity with clear, beginner-friendly instructions.

Specifications

ASIN	B00ISQKHTM
Age Range Description	60 Months to 1188 Months
Battery Description	Alkaline
Best Sellers Rank	14,921 in Toys & Games ( See Top 100 in Toys & Games ) 202 in Educational Science Kits
Brand Name	4M
Country Of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (2,788)
Educational Objective	Knowledge of crystal formation
Global Trade Identification Number	04893156039156
Included Components	1 x Crystal Growing Experimental Kit
Is Assembly Required	No
Item Dimensions	24 x 21.6 x 8.2 centimetres
Item Type Name	4M Crystal Growing Experimental Kit \| A Science and Chemistry Kit for Kids Ages 14+ \| Grow your own Crystals
Item Weight	0.54 Kilograms
Language	English
Manufacturer	4M
Manufacturer Part Number	00-03915/US
Manufacturer Warranty Description	12 months
Manufacturer recommended age	5 years and up
Material Type	Plastic
Model Number	00-03915/US
Number of Items	1
Number of Packs	3
Set Name	4M Crystal Growing Experiment Kit
Size	0.5 inches
Theme	Chemistry
UPC	756907947770 734548008920 798257694423
Unit Count	1.0 count

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€ 66.62

Duties & taxes included

In stock

Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Netherlands.

Secure transaction

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Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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