Safety goggles and gloves (some minerals can irritate the skin). Method 1: The Alum Crystal (Fastest and Clearest)
The external shape of a crystal (its habit) depends on growth conditions. Fast growth or impurities can lead to dendritic (branching) or distorted forms, while slow, steady growth yields faceted, geometric shapes. how to make your own crystals
Pour the clear liquid into a clean jar, leaving the undissolved sediment behind. Safety goggles and gloves (some minerals can irritate
Tie a "seed crystal" (a small, pre-grown crystal) to a nylon string and suspend it in the center of the liquid. steady growth yields faceted