40d:Malachite

Malachite

£ £ £ £ £ £ £ * = = = £ £ £ * * = = = £ £ * * * * = = £ * * * * * * =
Uses
Ore of copper Make bronze bars at smelter (with cassiterite) Make brass bars at smelter (with sphalerite) Make trifle pewter bars at smelter (with cassiterite) Make fine pewter bars at smelter (with cassiterite) Make billon bars at smelter (with silver nuggets, horn silver, galena, or tetrahedrite) Masonry Stone crafting Construction
Location
Limestone Marble Found as veins
Properties
Economic stone Material value 2
Wikipedia article

Malachite is an ore that contains the metal copper. In an unmined wall, it is represented as a green £.