Precious Stones and Crystals
A ‘precious’ scientific kit to unearth beautiful precious stones. The kit contains a brick to be carved to extract gems and precious stones, a mould to reproduce a fascinating coloured geode, and all the necessary elements to grow a giant crystal!
The detailed scientific manual contains all the secrets of mineralogy, crystals and the chemical reactions of salts!
Made in Italy.
Suitable for ages 8 and above