The Grinding Stones are a base station you unlock through the Alchemist. Once placed, you feed them raw materials and they return refined versions, turning Bones into Bonemeal, Wheat Grains into Flour, critter shells into Chitin Powder, and several other ingredients. Their description reads, “A simple setup for basic grinding work. Especially good for hard ingredients.”
Quick answer: Save the Alchemist and take him to your base; there, make Grinding Stones from 10 Flintstone and 15 Stone.
Craft the Grinding Stones at the Alchemist
The recipe lives with the Alchemist, so you need him settled at your base before the Grinding Stones become available. Rescuing the Alchemist is the gate here; after that the crafting itself is quick.
What the Grinding Stones make
Each recipe takes a set number of inputs and gives back a set number of outputs after a fixed time.
| Recipe | Output | Time |
|---|---|---|
| 2 Bones | 3 Bonemeal | 60 seconds |
| 3 Charcoal | 3 Coal Powder | 90 seconds |
| 3 Critter Parts or Critter Carapace | 3 Chitin Powder | 150 seconds |
| 3 Wheat Grains | 3 Flour | 300 seconds |
| 1 Obsidian | 1 Obsidian Dust | 480 seconds |
| 1 Silver Bars | 1 Silver Dust | 480 seconds |
| 1 Fossilized Bone | 3 Fossilized Bone Dust | 600 seconds |
Bonemeal is “Useful for alchemical and magical purposes.” Coal Powder is “Ground up coals, creating a highly flammable powder.” Chitin Powder is a “Fine powder made from grinding critter carapaces.” Flour is “Flour that can be created by grinding Wheat Grains to dust.” You can also work with Obsidian, Silver Bars, and Fossilized Bone for their respective dusts.
Grind region rubble
The Grinding Stones also produce rubble for each region. The pattern is the same everywhere: 1 Rubble plus 5 of the region’s stone plus its dirt or sand makes 10 of that region’s rubble in 70 to 80 seconds.
| Region | Stone | Dirt or sand |
|---|---|---|
| Springlands | Stone | Springlands Dirt |
| Revelwood | Revelwood Stone | Revelwood Dirt |
| Nomad Highlands | Limestone | Nomad Highlands Dirt |
| Blackmire | Blackmire Stone | Blackmire Dirt |
| Kindlewastes | Sandstone | sand |
| Veilwater Basin | Shell Limestone | Veilwater Basin Dirt |
| Cinder’s Cradle | Cinder Rock | Cinder’s Cradle Dirt |
