Picture of Easy Crystals growing on rocks
CuSO4 (Copper sulfate) is a chemical can everyone buy in almost every drugstore or on the internet. I bought like 1 kg, it is quite cheap, but you dont need so much.. Buy it in powder form.

Growing crystals from CuSO4 is well known thing. I've made many of them and i was thinking how if would look like if i try to grow them on an ordinary rock. And here it*

Procedure is very simple and it is reversible process....

!!! This chemical is toxic !!! Wear protection !!!
!!! Don't breathe it, touch it too much and certainly don't eat it no matter how tasty it looks !!!

YouTube channel:

Step 1: Growing solution

Picture of Growing solution
1. Take water (cleaner is better) and heat it to the boiling point.
Pour it into a glass jar or something with a smooth surface so crystal will not grow on walls but mostly on a rock. (heat the jar first)

2. Then Copper Sulfate. Add. Mix until it dissolves. Add. Mix until it dissolves. Add. Mix until it dissolves.
Until it is not dissolving in a water anymore. And do it outside! ;)

Step 2: Rock and spot

Picture of rock and spot
3. Put a rock into the solution and the jar place in a dark spot (not nessesary absolute darkness, i placed it in a room that was not used). , Don't breathe vapors from it -> basement is perfect.
...And leave it there. Do not disturb it. Don't even think about it.

* The rock should have diverse surface, somewhere smooth, somewhere not.
It has to be hard,tough,real rock. (tell me if i'm wrong, but i tried to grow these crystals on a seashell, but didn't work very well,actually it looked like the seashell is disolving. It turned blue, no crystals. So i guess any rocks made mostly from Calcium won't work (white rocks), but im not an expert or chemist so tell us if you know something about it)
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ninjakid114 months ago

(no comment)