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Crystal Eggshell Geodes

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A calming DIY project to create beautiful crystal formations inside cleaned eggshells.

Ingredients

  • Clean eggshell halves, washed and dried
  • White vinegar or warm soapy water for cleaning
  • Epsom salt (magnesium sulfate) or table salt
  • Warm water to dissolve the salt
  • Food coloring or powdered pigments (optional)
  • A small funnel or paper cone (optional)
  • A tray or shallow bowl for holding shells
  • Cotton, rolled paper, or modeling clay for stabilization
  • Clear craft glue or water-based sealer (optional)
  • Measuring spoons and a small cup for mixing
  • A fine paintbrush or dropper
  • Tweezers for careful placement
  • Protective gloves and adult supervision

Instructions

  1. Clean and dry each eggshell half gently.
  2. Stabilize the shells in a shallow tray.
  3. Make a warm, saturated salt solution.
  4. Optional: seal the inside lightly.
  5. Seed the shell gently to encourage crystal growth.
  6. Slowly pour or drop the solution into each shell.
  7. Place the tray in a warm, still spot with soft light.
  8. Watch and wait, checking gently after a few hours.
  9. Remove excess solution with care if needed.
  10. Let shells dry fully before touching the crystals.

Notes

Handle eggshells with care and allow the crystals to grow undisturbed for optimal results.