Easy Alum Crystal Growing Project

Alum cystal

Ude/Wikimedia Commons/CC BY-SA 3.0

Are you looking for an easy, safe, reliable crystal-growing project? These alum crystals may be the easiest crystals you can grow.

Why This Project Rocks

  • Non-toxic crystal (alum is a spice)
  • Uses hot tap water, not boiling water
  • Easy to do—mix and wait
  • Extremely reliable results—crystals will grow
  • Only requires a few hours for good crystal growth
  • Results in crystals large enough to pick up and examine

Grow Easy Alum Crystal

To grow these crystals you will need:

  • 1/2 cup hot tap water
  • 2 1/2 tablespoons alum

Simply stir the alum into the water and wait for crystals to grow. Alum crystals usually are visible within a half an hour and reach a good size within a few hours. It's that easy! When the crystals are to your liking, use a fingernail to scrape them off the side of your container. You can examine them and keep them.

Format
mla apa chicago
Your Citation
Helmenstine, Anne Marie, Ph.D. "Easy Alum Crystal Growing Project." ThoughtCo, Aug. 27, 2020, thoughtco.com/easy-crystals-to-grow-606263. Helmenstine, Anne Marie, Ph.D. (2020, August 27). Easy Alum Crystal Growing Project. Retrieved from https://www.thoughtco.com/easy-crystals-to-grow-606263 Helmenstine, Anne Marie, Ph.D. "Easy Alum Crystal Growing Project." ThoughtCo. https://www.thoughtco.com/easy-crystals-to-grow-606263 (accessed January 24, 2021).