Fun Littles

Fun and easy kids activities

Homemade Rocks and Gems

Sep 7, 201461,531 views
Messy Play
Ages4–8 yrs
Prep25 min
Activity30 min
Leveleasy
MessHigh
Works for1:1 · Small group · Class

Mix colored rock salt into white glue to make sparkly, chunky play gems that dry in about 2 days. Kids practice measuring, pouring and mixing, then sort the gems by color, learn about real gemstones or use them as pretend treasure.

⚠️ Safety first

  • Not taste-safe. Rock salt and glue are not for eating, and swallowing a lot of salt is dangerous for young children and pets. Supervise closely and skip this with kids who still mouth things.
  • Finished gems are small and can be a choking hazard for young children.
  • Salt can sting eyes and small cuts. Wash hands after mixing.
  • Liquid watercolors and food colors can stain hands, clothes and surfaces.
  • Once dry the gems are pretty sturdy, but not sturdy enough to be thrown around like real stones.

Before the kids arrive

  • Color the rock salt: put 1 cup of salt per color in a sealed baggie with a few squirts of liquid watercolor or food color, and shake.
  • Spread the colored salt on a cookie tray and let it dry thoroughly, overnight.
  • Plan a spot where the finished gems can sit undisturbed for 2 days to dry.

Steps

  1. Put 1 cup of rock salt in a plastic baggie, add a few squirts of liquid watercolor, and seal it.

  2. Shake the bag to spread the color until you like it.

  3. Lay the colored salt on a cookie tray and let it dry overnight.

  4. Measure 1/4 cup of white glue into a bowl.

  5. Add the 1 cup of colored salt to the glue little by little. Watch the glue turn gunky.

  6. Keep mixing with your hands or a spoon until all the glue is balled up with the salt.

  7. Shape the mix into gunky balls or gem shapes and set them on a clean, dry, flat container.

  8. Let the gems dry for 2 days.

  9. Sort the dry gems by color and talk about real gems and how they are formed.

  10. Use the gems as treasures in pretend play.

Tips

  • After you color your rock salt, set it out to dry. I let them dry overnight.from the author
  • As soon as the salt hits the glue the glue turns gunky. Keep mixing until all the glue is balled up with the salt.from the author
  • The glue and salt mix to create an instant gem/jewel effect that only enhances when they dry.from the author
  • It takes 2 days to dry, so plan ahead if you need the gems for a lesson or party.from the author
  • Be astounded with the beauty of it all and take multiple pictures!from the author
  • Mixing the glue with the colored salt is a wonderful process in itself. Kids can practice measuring, pouring and mixing.from the author
  • Two readers found the color came off the salt into the glue and the glue just balled up. One had used food coloring and Elmer's glue after drying the salt overnight. Make sure the salt is completely dry before mixing.from readers

Make it your own

  • Color the glue instead of the salt, then add plain salt.
  • Add all the ingredients together at once, which the author says works too.
  • Older children can color the gems to match real stones (emeralds, jaspers, sapphires, gold) and learn about different gemstones.
  • Hide the gems as treasure for pretend play.

Questions readers asked

Why did the color come off the salt when I mixed in the glue?

The author asked whether the colored rock salt had dried thoroughly first. Another reader who dried it overnight still had the color bleed, and no fix was posted. The post also says you can color the glue instead of the salt.

How long do the gems take to dry?

About 2 days.

Can I use food coloring instead of liquid watercolors?

Yes. The post says liquid watercolors or food colors both work.

Do I have to color the salt first?

No. You can color the glue and add the salt, or add all the ingredients together. The author says that works too.

Are the dry gems sturdy?

Pretty sturdy, but not sturdy enough to be thrown around like real stones.

The story behind it

By TurkeyMom · September 2014
colored rock salt sensory play
Gotta love bright colors right?! We made sparkly, shiny rocky gems and jewels for play and learning. Start off with colored rock salt, and set it out to dry overnight.
1 / 10

Homemade Rocks and Gems: the original post

Gotta love bright colors right?! We love liquid water colors and they did not fail us in this sensory activity. We made sparkly, shiny rocky gems and jewels for play and learning. Any project that turns into a mixing and pouring type of sensory activity is always a great hit. You will need rock salt ( ice cream salt), liquid watercolors or food colors and glue for this project. { Use ice cream salt to make crystal play dough too} Start off with colored rock salt. {Edit: after you color your rock salt please set them out to dry. I let them dry overnight. Here is a post by Two Daloo explaining the coloring process}

colored rock salt sensory play

Set out white glue

materials glue and rock salt

Mixing the white glue with the colored rock salt is a wonderful process in itself. The kids can practice measuring, pouring and mixing.

mixing the ingredients

Either use your hands to mix

Mixing the glue ansd salt

Or a spoon.

MIXING GLUE GEMS

Make multi-colored gunky balls and set them to dry

rocky gems for sensory play

Be astounded with the beauty of it all and take multiple pictures!

homemade sparkly gems

The glue and salt mix to create an instant gem/jewel effect that only enhances when they dry.

glu gems for kids

You can sort them by colors and talk about real gems and how they are formed.

shiny gems for kids

Or the kids can use them in their pretend play as treasures.

sensroy play with diy gems

Once the gem are dry they are pretty sturdy but not sturdy enough to be thrown around like real stones!

sparkly gems for kids

Yep, that’s our emerald right there.

Play Recipe : Homemade rocks and gems

colored fake gems

Measurements:

DIY Gems and Jewels

This recipe is a popular one often found in many kids activities book like this one The Everything Toddler Activities Book.

I developed on it and made colored salt instead of adding all the ingredients together ( which works too)

To make multiple colors start off by coloring 1 cup of ice cream salt for each color. Add cup of rock salt in a plastic baggie (sealed) and add few squirts of liquid watercolors or food colors. Start shaking the bag to spread the color. Once you are satisfied with the color, lay the colored salt on a cookie tray to dry.

You can also color the glue and add the salt.

Take 1/4 cup of glue and add your 1 cup of colored rock salt little by little. As soon as the salt hits the glue the glue turns gunky. Keep mixing (either with your hands or a spoon) until all the glue is balled up with the salt.

Set all the glue-salt balls ( make desired shapes) on a clean dry flat container.

It takes 2 daysto dry. Once dry use them as you wish in play. Older children can study and learn more about different gem stones. We colored them accordingly ( emeralds, Jaspers, sapphires, gold etc)

Thanks for reading

Make glue gems with this simple recipe. Great for learning and sensory play time

Both the books are on SALE! ENDS 9/14/2014**

What readers say

💬 5 comments ✍️ 1 answered by the author

Answered by the author

“The color came off the salt into the glue. What went wrong?” · lily

Author The author asked whether the colored rock crystals had dried thoroughly, pointing to fully drying the colored salt before mixing it with glue.

🛠️ Troubleshooting

Color bled out into the glue

One family found the color came off the salt into the glue, and the kids were disappointed. The author asked whether the colored salt had dried thoroughly first.

“The color came off of salt with the glue and water from it as well. My kids were disappointed”
lily, Sep 2014

🛠️ Troubleshooting

Overnight drying still didn't work

Another reader used ice cream salt, food coloring and Elmer's glue, dried the salt overnight, but the color still came out of the salt.

“We let are rock salt dry over night. And all that happened was are glue balled up and the food coloring came out of the salt.”
Kmg, Oct 2014

🎉 Worked for us

Vivid colors impressed readers

A reader loved how the finished gems turned out and how bright the colors were.

“Those came out so cool and the colors are so vivid!”
Laura, Sep 2014

Tried it?

Reviewed before it appears. No links, and please no children's names.

Read all 5 comments
  1. Kmg · Oct 2014

    This didn't work for us either. I used ice cream salt food coloring and Elmer's glue like suggested. We let are rock salt dry over night. And all that happened was are glue balled up and the food coloring came out of the salt. Any suggestions of what we did wrong here?

  2. lily · Sep 2014

    This didnt work for us. The color came off of salt with the glue and water from it as well. My kids were disappointed

  3. TurkeyMomAuthor · Sep 2014 · replying to lily

    Hi Lily, did you let the colored rock crystals dry thoroughly?

  4. peggy · Sep 2014

    I'm going to try this

  5. Laura · Sep 2014

    Those came out so cool and the colors are so vivid!

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