This is "parasitic growth." Dust fell in, or the solution cooled too fast, creating spontaneous nucleation.
Cover the jar loosely with a paper towel (to keep out dust while allowing evaporation). Place it somewhere undisturbed—no vibrations, no temperature swings, no curious fingers. Check it daily. Small crystals will begin forming within hours, but full growth takes 1–2 weeks. diy crystal growing
At its core, crystal growing is about and evaporation . This is "parasitic growth
Submerge the skewer in the sugar syrup, using the clothespin to balance it across the top of the jar. Wait 5–7 days for large, chunky sugar crystals to form. 3. The Geode Mimic: Alum Crystals Check it daily
If you want crystals that look like professional museum specimens, Alum (a pickling spice) is the way to go.
Once your crystal reaches the desired size, gently remove it from the solution. Pat it dry (don't rub—crystals are brittle). Spray with clear acrylic sealer to prevent it from dissolving in humid air. Mount it on a small stand or display it in a covered glass dome.