40d:Native gold

Native gold

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Uses
Make gold bars at smelter Make electrum bars at smelter (with silver nuggets, horn silver, galena, or tetrahedrite) Masonry Stone crafting Construction
Location
Igneous intrusive layers Igneous extrusive layers Soil Found as veins
Properties
Material value 30
Wikipedia article

It is possible to make crafts or mechanisms with gold nuggets if it's enabled in the z-status stone menu, resulting in quite valuable items, good for export early in the game. This method also works for furniture, while costing only a single ore.