Easter Egg Geodes: food coloring, egg shells, hot water, minerals
The egg below used sea salt - just the generic table sea salt from the grocery store. I like how the solution soaked through the egg and grew crystals on the outside too.
Unfortunately, I lost the chart C made so I am not sure but I think the egg below used Borax.
The coolest eggs by far were these eggs which used Epsom salt. Tip: Epsom salt can be bought at Dollar Tree, for...you guessed it 1 dollar!!
The eggs (especially the Epsom salt eggs) were remarkably tough to break - but we had tremendous fun studying the crystals.
Oh, one tip. If you plan on making these start them several weeks in advance (unless you live in a really, really dry climate). It takes awhile for the mineral solution to evaporate.
I wrote a complete tutorial for these which you can find at Suite101.
I am sharing this at lots of great sites, check them out.
Easter Decor Day at Life as Lori
Growing our Own Garden: Easter Decor Inspiration Linky