Description
Kick-start your very own rock collection with the 36 stones. Then use the included crystal powder and mold to grow a geode formation. Collect rocks and conduct experiments, such as a scratch test and float test, to discover their hidden properties....
More Information
| RevType | 2 |
| Manufacturer | Klutz |
| Sku | 9781338575729 |
| Identity | 27079897861 |