Описание товара на английском языке:

Grow your own beautiful sparkling crystal geode inside a crystal shell. Enjoy the moment when you reveal your crystal geode! Includes a specially designed container for growing quality crystal geodes and contents for making two complete sets of crystal geodes.
Kit Contains:
- Crystal shells set
- Large bag of white crystal compound 9a base compound called Monoammonium phosphate)
- Small bag of white crystal compound as seeding
- Crystal container
- Crystal shell stand
- Stirring spoon
- Detailed instructions
The size and shape of the crystals may vary depending on the experimental conditions.
The white crystal compound (monoammonium phosphate) is hygroscopic: it tends to “capture” humidity contained in the air, and this phenomenon creates links between crystals. The material may become hard (due to caking) but can very easily be separated afterwards, rather like sugar.