Amazing Crystal - Green

Amazing crystals - for scientific fun. Grow crystals of all colors!
In each set: a beautiful jar that makes it easy to monitor the growth of crystals, magical crystalline powder, a crystalline tablet, a stirring stick, a cork, a string, a tag, and instructions.
The set includes: a glass jar, crystalline powder, a base for growing the crystal, a mixing stick, a tag, a cork, instructions.
Information on the box - completely in Russian.
Composition: glass, cork wood, chemical mixture (potassium aluminum sulfate).