In this super fun, easy, and inexpensive tutorial, we are going to make an Emerald Mine Edible Excavation that the young Excavating Adventurers in your life will love. This Emerald Mine Edible Excavation is a spin on good old fashioned Rice Krispies Treats recipe, but we add a fun Excavating Adventures activity. We’ll take this tasty treat and turn it into a delicious emerald mine to explore and discover the yummy edible emeralds we have hidden inside.


Excavating Adventures Pro Tip: Use this edible excavation to create some fun and excitement around topics or lessons concerning gemstones, emeralds, mining, and more!



6 Tbsp salted butter

6 cups mini marshmallows – Mini marshmallows melt easier than the larger ones.

1/2 tsp vanilla extract

4 cups Cocoa Rice Krispies cereal

Several packs of M&Ms

13 x 9 x 2-inch pan

Measuring cups and spoons


Cooking spray

Plastic spoons, forks, and knives. These will be the excavation tools.



  1. Remove all the green M&Ms. These will be our edible emeralds.
  2. In large saucepan melt butter over low heat.
  3. Add the mini marshmallows and stir until completely melted. Remove from heat.
  4. Add the Cocoa Rice Krispies cereal. Stir until well coated.
  5. Coat the 13 x 9 x 2-inch pan with cooking spray.
  6. Using a buttered spatula or wax paper, evenly press a thin layer of mixture into the pan.
  7. Quickly scatter the green M&Ms in the pan and press another layer of Rice Krispies mixture on top.
  8. Allow to cool.
  9. Cut into 2-inch squares. The Emerald Mine Edible Excavation is best if served the same day.
  10. Distribute the “excavation tools” and encourage the Excavating Adventurers to dig in and discover the emeralds as they become gem miners for the day.


Emerald Treasures: Fun Facts About Emeralds and the Art of Mining!

Fun Facts about Emerald and Emerald Mining:

  1. Emeralds are precious gemstones that belong to the beryl family and are prized for their vibrant green color.

  2. Colombia is the world's leading producer of emeralds, accounting for about 70-90% of global emerald production.

  3. Emerald mining requires both manual and mechanized methods, with miners carefully extracting the gemstones from underground mines or open-pit mines.

  4. The process of mining emeralds involves carefully removing layers of rock and soil to reach the emerald-bearing veins or pockets.

  5. Emeralds are often found in areas with ancient geological formations and volcanic activity, as these conditions create the right environment for their formation.

  6. The cutting and shaping of emeralds is done by skilled gem cutters, who transform rough emerald crystals into beautiful gemstones with various shapes and facets.

  7. Emeralds are valued not only for their color but also for their clarity. Inclusions, or internal characteristics, are common in emeralds and can give them a unique appearance.

  8. Some famous emerald mines include the Muzo, Chivor, and Coscuez mines in Colombia, where some of the world's most exquisite emeralds have been discovered.

  9. Emerald mining can be challenging and requires careful excavation to avoid damaging or breaking the delicate gemstones.

  10. The largest emerald ever discovered is the Bahia Emerald, weighing an astonishing 840 pounds (381 kilograms) and consisting of several large emerald crystals.

  11. In addition to Colombia, other countries known for emerald mining include Zambia, Brazil, Afghanistan, and Zimbabwe.

  12. The allure of emeralds has captivated cultures throughout history, from the ancient Egyptians and Greeks to royalty and celebrities today.

Remember, emeralds are not only beautiful gems but also a testament to the skill and dedication of miners who bring these precious treasures to light!


Excavating Adventures Pro Tip: Planning a geology themed birthday party? These Emerald Mine Edible Excavations are always a huge hit. Your birthday party guests will love digging into these delicious treats and discovering the edible emeralds inside. You may also want to consider including our Rocks and Minerals Birthday Digs in your celebration. Each no-prep kit is designed to excite and entertain birthday guest and is filled with real rocks and minerals for your guest to discover and collect! We also have tons of DIY dig kit ideas if you wanting to make your own geology themed excavation activities. Check them out and Happy Excavating!



Question 1: Which country is the leading producer of emeralds? A) Brazil B) Zambia C) Colombia D) Afghanistan

Correct answer: C) Colombia

Question 2: What is the process involved in mining emeralds? A) Sifting through sand B) Searching underwater C) Extracting from volcanic rocks D) Digging in caves

Correct answer: C) Extracting from volcanic rocks

Question 3: What is an important factor in determining the value of emeralds? A) Size B) Color C) Shape D) Weight

Correct answer: B) Color