How long do the crystals take to form?

Crystals generally start to form within 24 hours, but leaving them for a few days can create larger, more beautiful crystals.

Can I use other materials instead of seashells?

Yes, other porous materials like rocks or pinecones can also be used and will create interesting texture variations.

Ensure that the borax is properly dissolved, and the solution is not disturbed during the crystallization process.

The borax solution should not come into contact with your mouth, and children should be supervised during the project to avoid any accidents.

It’s best to discard the solution after use as it may become saturated and less effective for growing new crystals.

Create stunning rainbow crystals with seashells in this engaging craft project that combines science and creativity.

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Prepare your solution: In a jar, mix 3 tablespoons of borax with 1 cup of boiling water. Stir until dissolved.
Add color: Optionally, add a few drops of food coloring and mix well.
Insert seashells: Place the clean and dry seashells into the jar, ensuring they are fully submerged.
Let it sit: Leave jars undisturbed for at least 24 hours in a safe location.
Harvest your crystals: After 24 hours, remove the shells and allow the crystals to dry on a paper towel.

Supervision is advised for kids during the boiling water step. You can repeat the process for larger crystals.