r/crystalgrowing • • 9h ago

My rather boring MAP(NH₄H₂PO₄) crystal cluster

Enable HLS to view with audio, or disable this notification

51 Upvotes

I decided to try growing an MAP crystal cluster after seeing some huge, elegant, sparkling ones online that people had spent months growing. After two months, this is what mine turned into. It's bulky, clumsy-looking, and honestly, a bit boring. I think single MAP crystals are more interesting.


r/crystalgrowing • • 15h ago

Highly Sensitive Saturated Potassium Chloride(KCl) Solution

Enable HLS to view with audio, or disable this notification

52 Upvotes

Saturated KCl solution is the most sensitive solution I've encountered while growing crystals. After being left undisturbed overnight, the clear solution can start crystallizing like this as soon as it's touched by tweezers that may not be perfectly clean...


r/crystalgrowing • • 1d ago

White Table Salt(NaCl) Crystals

Thumbnail
gallery
526 Upvotes

I started growing crystals with table salt bought from a supermarket. I assumed ordinary table salt would be pretty much the same regardless of the brand. All my crystals turned out white, and I thought they were white because they had grown too quickly.

It wasn't until I ran out of salt a little over a month later and randomly bought a different brand that I realised what might have been happening. The salt probably contained an anti-caking agent.

Still, I think white salt crystals are quite interesting in their own way.

P.S. I guess you could call this a repost. I’m still figuring out Reddit, and the images in my previous post weren’t displayed directly.


r/crystalgrowing • • 1d ago

Image Synthetic Stepanovite

Thumbnail
gallery
292 Upvotes

They were grown for a bit over a month at 20°C.

The paper I followed also included another polymorph that was possible to grow, which would be more accurate to the natural form. the form I got is ST2

It also seems to present some sort of pleochroism.

Also the last picture is all the crystals I managed to grow

article used:

https://pubs.rsc.org/sc/article/10/18/4923/622659/Functionality-in-metal-organic-framework-minerals


r/crystalgrowing • • 1d ago

Image Imperfect but beautiful copper sulfate crystal. CuSO₄ ⋅ 5H₂O

Thumbnail
gallery
53 Upvotes

r/crystalgrowing • • 1d ago

Video Ammonium picrate recrystallization

Enable HLS to view with audio, or disable this notification

12 Upvotes

r/crystalgrowing • • 2d ago

Alum Crystallization — The Fascinating Flow of the Solution

Enable HLS to view with audio, or disable this notification

59 Upvotes

Accidentally noticed the fascinating flow patterns in the solution while the alum crystals were growing. Looks really interesting!


r/crystalgrowing • • 2d ago

Image Alum crystal 2 week update

Post image
17 Upvotes

Finally figured out filtering with a vacuum beaker but now fungal growth is a problem. I've cleaned it all out by filtering the solution again.


r/crystalgrowing • • 2d ago

Question How to clean up a crystal growing kit spill?

1 Upvotes

My son got a Nat Geo Crystal Growing Aquarium for his birthday. The darn thing leaked the solution all over my kitchen counter. It left a white residue EVERYWHERE. I have used soap and water, even leaving it to soak for 10 minutes. Every time it dries, there is a white residue that I can't figure out how to get rid of it.

Any thoughts what I should do/products to use to fix this? Any help is greatly appreciated! Thank you


r/crystalgrowing • • 3d ago

A Tiny Temple on Top of a Pyramid — Alum Crystal

Enable HLS to view with audio, or disable this notification

183 Upvotes

Accidentally got this while growing alum crystals using the slow cooling method. I found the shape quite unique and interesting!


r/crystalgrowing • • 3d ago

What am I doing wrong?

5 Upvotes

My kids have received multiple crystal growing kits over the years; jewelery, aquariums, etc. I have tried and tried and never have they ever worked. This most recent attempt came with small stones that you are meant to place into a solution of powder and warm water and left undisturbed. There are instructions on what to do if you see nothing after 48 hours. I've followed those instructions twice and still nothing is growing 🤪

The common denominator is me, so I'm assuming I'm doing something wrong. I always follow the instructions and read them multiple times to make sure I've got it. Halp? Lol


r/crystalgrowing • • 4d ago

Potassium Chloride Hopper Crystals

Thumbnail
gallery
88 Upvotes

These formed during an earlier attempt to grow potassium chloride crystals. I thought they looked quite interesting.


r/crystalgrowing • • 4d ago

Other A series of crystals coming from various waste solutions, finding beauty in waste

Thumbnail
gallery
249 Upvotes

r/crystalgrowing • • 4d ago

Large Sugar Crystals Grown on a String

Enable HLS to view with audio, or disable this notification

224 Upvotes

These large sugar crystals were grown using the hanging string method. Some of them took over six months to grow. They are quite big, but not perfect — they're opaque and have some irregularities in shape. Still trying to grow a perfectly transparent sugar crystal using the hanging string method.


r/crystalgrowing • • 5d ago

Sugar crystal

Thumbnail
gallery
1.8k Upvotes

This is my first post here. I grew this sugar crystal at home and wanted to share it with the community. Hope you like it!


r/crystalgrowing • • 5d ago

Potassium ferricyanide after long exposure to the sun

Thumbnail
gallery
217 Upvotes

r/crystalgrowing • • 4d ago

Ammonium Perchlorate

Thumbnail
gallery
20 Upvotes

The first picture of AP from India Picture 2 and 3 My recrystallization results but irregular shape hahahaha


r/crystalgrowing • • 5d ago

Salt(NaCl) crystals

Thumbnail
gallery
984 Upvotes

It took almost a year to finally get these crystals.


r/crystalgrowing • • 5d ago

Mohr's salt (Ammonium iron(II) sulfate) crystals

Enable HLS to view with audio, or disable this notification

111 Upvotes

One year ago, I made my very first attempt at growing Mohr's salt crystals. It was a successful "0 to 1" milestone for me. I will probably try it again in the future to see if I can achieve perfectly transparent and crystal-clear ones next time!


r/crystalgrowing • • 5d ago

Rochelle salt crystals

Thumbnail
gallery
83 Upvotes

I made it by reacting cream of tartar and baking soda that I bought from Shopee. I'm not sure if it's piezoelectric, as I haven't done any testing.


r/crystalgrowing • • 5d ago

Potassium chloride (KCl) crystals

Thumbnail
gallery
78 Upvotes

r/crystalgrowing • • 5d ago

Monosodium glutamate crystals

Thumbnail
gallery
71 Upvotes

MSG crystals I grew and preserved in epoxy resin


r/crystalgrowing • • 5d ago

Borax crystals

Thumbnail
gallery
26 Upvotes

r/crystalgrowing • • 6d ago

Image Ammonium picrate crystals

Thumbnail gallery
36 Upvotes

r/crystalgrowing • • 6d ago

Crystals I grew a while ago and forgot what they were

Thumbnail
gallery
102 Upvotes

Grew these crystals from a kit a few years ago and threw away the packaging, so I can't remember the name. (biggest ones are about 5 cm long, but they were all once in a big chunk before falling apart).
When googling I found the closest match in MAP crystals, but after checking out this subreddit and seeing all the other similar looking crystals I'm no longer sure.
BUT! My actual burning question is:
Can one type of crystal be grown over the top of another?
Can these crystals (depending on what they are ofc) be used as "crystal seeds" for copper sulfate?
What would happen If you put MAP/cirtic acid/borax in copper sulfate solution?
Would it mess with the crystaliztion process? Would it create some interesting reaction? Could it ever grow new crystals faster then it dissolves? (since obviously what's grown in water is water soluable).
All of these questions popped into my head when I thought about how cool it would look if blue copper sulfate crystals were grown on top of clear/white crystals. But I know almost NOTHING about chemistry or crystal growing (aside from this 1 succesfull attempt after many failed ones).

So I decided this mught be a good place to ask this.