Rock Alum crystallisation #Exp10

In this experiment you can see how beautiful crystals are formed from a powdered element. You can see in the description the details of what the kit contains.


  • Delivered by UPS .
  • Place your order now and receive it in 4-5 days


  • 1kg Rock Alum
  • Does not include: Cups, Thread, Dye and Glass Wand, which you will have to buy in a shop.


We show you the detailed step by step video:


  • We will use 250g of Alum and 250ml of water. Heat and mix until completely dissolved.
  • Pour the solution into a glass. (If you want to colour the glass, add the colouring at this step).
  • Place the thread on a rod (or similar) so that it falls over the glass.
  • In 30-40 minutes you will start to see crystals forming. After a few hours the crystal will continue to grow.


Crystallisation is the process by which crystals are created from a powdered element. The basis of crystallisation is the greater solubility of an element at a higher temperature than at a lower temperature. As the solution cools, the solubility of the alum decreases and the crystal forms around the wire.

Request the product documentation (Technical Data Sheet, Safety Data Sheet) through one of the through one of the following ways contact


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