5 slightly different shapes for each of the following resources:

- Stones

- Copper ore

- Iron ore

- Gold ore

- Coal

- Smaragds

- Rubies

- Sapphire

- Diamonds

One set comes with an grass patch. I made it to fit the following tileset:

https://opengameart.org/content/grass-tileset-16x16

The Pyxel Edit source file is added, so you can easily adjust them for your needs :)