Volcanic rock: minerals, ores and what a city can dig

Under a city, Volcanic rock holds 52 minerals of the Crystal encyclopedia and the ores of iron, copper, mercury.

Metals and their ores

• Iron from Magnetite
• Copper from Copper, Chalcopyrite, Bornite
• Mercury from Cinnabar

What a city can dig

Iron, Copper and bronze, Building stone, Gemstones, Clay and bricks, Sulphur

Minerals

Amethyst, Ruby, Sapphire, Obsidian, Magnetite, Copper, Topaz, Opal, Labradorite, Peridot, Spinel, Carnelian, Chalcopyrite, Sulfur, Sodalite, Chalcedony, Prehnite, Chlorite, Spessartine, Larimar, Sunstone, Bloodstone, Cinnabar, Pyrrhotite, Stilbite, Apophyllite, Analcime, Enstatite, Hauyne, Heulandite, Joaquinite, Natrolite, Nepheline, Neptunite, Pectolite, Pentlandite, Olivine, Diopside, Ilmenite, Realgar, Orpiment, Agate, Onyx, Jasper, Orthoclase, Bornite, Gibbsite, Nickeline, Manganite, Sperrylite, Cooperite, Bauxite

Offered first on: plateau, island, volcanic field

Orders of magnitude for play: sourced figures and Hearth estimates together. Every source, and every figure still waiting for one, is listed in the builder under Sources.

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