Yes, an Earth Crystal is indeed a type of mineral. You can find it by searching in The Mines, particularly on floors 1-39. It can also be obtained from Geodes and Omni Geodes, dropped by Duggies on floors 1-29, dropped by Haunted Skulls, or by panning. You can also find it in Fishing Treasure Chests.
When you defeat Wilderness Golems on the Wilderness Farm map, there is a very small chance (0.05%) that they will drop an Earth Crystal.
Bombs have the ability to destroy Earth Crystals.
| Name | Earth Crystal |
| Source | The mines Geode Omni Geode Duggy (10%) Hunted Skull (1.30%) Panning Fishing |
| Sell price | 50g |
| Gemologist | 65g |
Bundles
Earth Crystal is used in the Geologist’s Bundle in the Boiler Room
Recipes
| Name | Description | Ingredients | Recipe Source |
| Mayonnaise Machine | Turns Eggs Into Mayonniase | Wood (15) Stone (15) Earth Crystal(1) Copper Bar (1) | Farming Level 2 |
Buildings
To buy the Earth Obelisk from the Wizard’s Tower, you’ll need an Earth Crystal.
| Name | Description | cost | Size |
| Earth Obelisk | Warps you to the mountains | 500,000g Iridium Bar (10) Earth Crystal (10) | 3×3 |
Tailoring
Earth Crystal is used in the spool of the Sewing Machine to create a Shirt. It can be used in dyeing, serving as an orange dye at the dye pots, located in Emily’s and Haley’s house, 2 Willow Lane.
Quests
- Earth Crystal may be randomly requested during any season at the outside for a reward of 150g and 150 points.
- Earth Crystal are requested by Stonefish in a Fish Pond quest to increase the capacity of the pond from 3 to 5.
- 1-2 Earth Crystal may be requested by Bullhead, Catfish, Largemouth Bass, or Midnight Carp in a Fish Pond quest to increase the capacity of the pond from 5 to 7.