Crystals are minerals; inorganic solids which occur naturally. Some form due to precipitation; minerals precipitate from a solution to collect in a crystalline form. This is called nucleation. Growing crystals at home is referred to as "assisted nucleation."
Things You'll Need
1 cup of alum
500 ml of water
500 ml glass jar with lid
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Instructions
1
Pour the alum into the glass jar.
2
Add the water to the jar.
3
Put the lid on the jar and sit it on a windowsill.
4
Leave the jar for a week to allow crystals to grow.
