Crystal Geode Kit

£6.75

Suggested Age:  7+

4 in stock

  • Create a sparkling geode
  • See crystals grow
  • Learn about geology
  • Spark an interest in science

Children can learn about minerals as they make their own sparkling geode using the mold and mix included in this kit!

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Create a glittering geode to display with your Rocks and Minerals Collection.

Geodes are hollow rock formations with crystals inside. They can look very ordinary on the outside but beautiful on the inside. Budding geologists will love learning how natural geodes take years to form in volcanic rock and then make their own in a matter of days! They will grow the seed crystals, form the geode “rock” out of plaster and then mix the coloured alum solution to crystallise inside the shell. Each step has to be left a day or so before moving on to the next stage so allow several days to complete. Patience is rewarded with a stunning crystal creation.

Please note you will require some additional household items to complete this experiment such as; glass jar, spoon, stove, cooking pot, distilled water and paper towels.

Weight 325 g
Dimensions 225 × 180 × 55 mm

20g of Aluminium potassium sulfate
200g of plaster (calcium sulfate)
1g of red colouring
1 x plastic geode shell mold
1 x measuring beaker
1 x wooden spatula

Please note you will require some additional household items to complete this experiment such as; glass jar, spoon, stove, cooking pot, distilled water and paper towels.