Limestone and chalk: minerals, ores and what a city can dig
Shells and lime settled on the floor of warm shallow seas. Rainwater dissolves it into caves, sinkholes and springs. Under a city, Limestone and chalk holds 41 minerals of the Crystal encyclopedia and the ores of iron, copper, silver, lead, zinc, mercury.
Metals and their ores
- Iron from Hematite
- Copper from Malachite, Azurite
- Silver from Galena
- Lead from Galena
- Zinc from Sphalerite, Smithsonite, Hemimorphite
- Mercury from Cinnabar
What a city can dig
Iron, Copper and bronze, Lead, Silver, Building stone, Clay and bricks
No coal lies in this rock: a city on it burns wood, or buys its fuel.
Minerals
Emerald, Malachite, Turquoise, Calcite, Fluorite, Azurite, Lapis Lazuli, Gypsum, Hematite, Galena, Sulfur, Talc, Apatite, Selenite, Sphalerite, Chalcedony, Tanzanite, Dolomite, Barite, Anhydrite, Aragonite, Cinnabar, Smithsonite, Celestine, Wavellite, Crandallite, Hemimorphite, Marcasite, Pyrolusite, Tremolite, Wollastonite, Realgar, Axinite, Vesuvianite, Jasper, Pearl, Mother of Pearl, Coral, Psilomelane, Bauxite, Flint
Offered first on: valley, hill, plateau, karst
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