These Geode Bath Bombs are So Crazy Easy, You’ll Love Them!

Making geode bath bombs became a kind of goal in my mind for a while now–and this easy recipe is so simple, it’s insanely cool and the bath bombs rock! Heh.

easy geode rock bath bomb recipe
I love how easy it was to make these awesome geode bath bombs–they’re literally SUPER simple!

Geode Bath Bombs

Here at Ruffles and Rain Boots, we have the best time making bath bombs at home. It’s seriously become one of those activities that the kiddo expects to do together. Like our own little craft idea. But when she asked for geode bath bombs (she saw some YouTube video, I guess), I was not impressed with how hard they looked. Until…I found a cool “cheat” to get the crystals embedded in the bath bomb without all the heartache of making them myself!


The trick is in using crystal sprinkles. I don’t know why I didn’t think of it before–it’s honestly genius. So, if you’re ready to make easy geode bath bombs, let’s get started.

how to make a bath bomb like a geode
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closeup of crystal bath bomb recipe with text which reads geode bath bombs

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Tips to Make Crystal Bath Bombs

  • Start by grabbing the AWESOME crystal sprinkles here. They’re what make these fun crystal bath bombs pop. Obviously. That’s the whole point of a geode, right?!
  • To get a really bright edge on your geode bath bombs with the gold edible glitter, either make the mix really thick or plan on doing a couple of coats. Because the bath bomb mixture is so dark, it takes some attention. If you want to use the gold edible glitter, grab it here.
  • Definitely plan on letting your bath bombs dry out for at least 24 hours before using them so that you get the fizziest fizz for the effort. Plus, letting them dry for that long, if for some accidental reason or whatever, the mixture maybe got a bit wetter than necessary, you’ll still achieve peak fizz.
  • Keep your Lush-inspired bath bombs at top-fizziness peak for longer by storing them in an air-tight container like a mason jar, Tupperware or top-seal plastic bag. And keep in mind, if you plan on giving them as a gift, you should keep them in an airtight container and maybe tell your recipient too.
  • You can put as much or as little fragrance or color into your geode bath bombs as you want-–they’re your bath bombs and it’s your bath–make a whole rainbow for all I care, I just liked purple because that’s what went with my sprinkles. But never ever use food coloring–not only will you color your skin, but you’ll color the bathtub, too. So, even though it might be a bit less convenient, use either soap colorant or mica powders–it’s worth it in the long run.
  • These geode crystal bath bombs are made-up of essential oils, citric acid, and a bit of water (with some other stuff but that’s the basic recipe), just like all of my bath bombs. So, if you’re having trouble getting your bath bombs to hold their shape, they’re probably not wet enough–the mixture is intended to be a bit dry. Just add a little spritz of water and try again. But if you keep having trouble, check out this article on trouble-shooting bath bombs and shower fizzies
easy recipe to make geode bath bombs

A Different Type of Geode Bath Fizzy

If you can’t find the crystals, consider making these ridiculously easy geode bath bombs with sea salt. They are fun to make with little ones and you can get some really fun colors.

Vertical image showing bright pink crystal geode bath fizzies in white dish with diamond vase filler placed on a marble desk with red and white twine.
These bath bombs come together pretty quickly and make a serious statement.

How Do I Make Geode Bath Bombs?

I’m so glad you asked. Below is our written tutorial.

Yield: 12 Fun Geode Bath Bombs

Geode Bath Bombs

easy recipe to make geode bath bombs

These easy geode bath bombs are such a fun way to craft with the kiddo and the resulting bath bomb is so cool, you'll definitely want to be giving them away as gifts!

Prep Time 5 minutes
Active Time 15 minutes
Total Time 20 minutes
Difficulty Easy
Estimated Cost $3




  1. Combine the baking soda, citric acid, cornstarch and epsom salts. 
  2. In another bowl, stir together the melted coconut oil and witch hazel. 
  3. Add the wet ingredients, about 1 tsp at a time, to the dry ingredients, stirring slowly so as not to kick up the fizzing. 
  4. Separate about 1/2 of the mixture into a second bowl.
  5. To one bowl, add both the pink and blue mica powders and stir together to get it purple throughout. In the other bowl, add the charcoal and stir together.
  6. Dust a bath bomb mold with cornstarch. 
  7. Pack the bath bomb mold, starting with the charcoal mixture, along the edges, about ¼-inch thick. Add a layer of the purple mixture, most of the mold. Press the mixture into the mold solidly.
  8. Add about a half tablespoon of the crystal sprinkles, pressing them into the mixture to help them stay in the bath bomb.
  9. Allow your mostly-complete bath bombs to dry in the mold for up to 24 hours. When dried, gently tap the side of the mold to get the bath bomb to release.
  10. Combine the gold glitter spray and alcohol, then paint on a stripe to the top of each bath bomb.
  11. Use your bath bombs immediately or store in an airtight container until you’re ready to use! photo collage tutorial of how to make geode bath bombs


For more fun bath bomb DIYs, visit Ruffles and Rain Boots!

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Did you make this?

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More DIY Bath Bomb Recipes You Might Like

  • Adorable Donut Bath Bombs – These donut bath bombs are everything. They’re cute, fun and really quick to make–and the kid loves them!
  • Glow in the Dark Bath Bombs – If you’re looking for a fun craft to make with the kid and some fun times in the dark bathroom, these glow in the dark bath bombs are where it’s at.
  • Fresh Lemon Bath Bombs – Need a refreshing start to your bath time? This. Bomb. Is. It. Get the easy recipe and get fresh!
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photo collage of easy diy crustal bath bomb recipe with text which reads geode bath bombs

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