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| Symbol | Co |
|---|
This is a short overview. For the background — history, value over time and notable mines — see Cobalt →
Occurs in: Hydrothermal Deposits, Veins and Lodes →
A hard, ferromagnetic metal, historically worked from cobalt-arsenic ores associated with other metal veins, roasted to drive off arsenic before smelting. Used to produce blue pigments and glazes (cobalt blue), and later in alloys and batteries.
| Mine | Region | Worked |
|---|---|---|
| Alderley Edge Mines | Cheshire | Bronze Age–1926 |
| Alva Silver Mine (Silver Glen) | Clackmannanshire | 1712–1716 |
| Botallack Mine | Cornwall | 1500s–1895 |
| Clive Mine | Shropshire | 17th century–1869 |
| Cobalt Mine | Cheshire | Probably early 19th century–By 1850s |
| Great Dowgas Mine | Cornwall | c. 1719–1913 |
| Saddlebole Mine | Cheshire | from Documented from 1693 |
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