Ores for Cavern Walls/Props

What Asset(s) would you like to see included within TaleSpire?
Ores. They are the primary reason for any mine to exist. From coal to copper, iron to gold, even diamonds! I'd like to see variant walls for the Caverns to match the mining equipment, maybe some more carts.

Iron ore is often a silvery or orange color, depending on environment.

Copper oxidizes green; could double as algea/lichen.

Gold Ore for the Shiny, Shiny.

Coal normally appears in bands, adding texture and depth to valleys and large caverns.

Additional Thoughts/Details

I think that these can really immerse the experience for the players, and anyone watching.

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Note: This has been copied over from GitHub.