THE MINING PERIODS OF JÁCHYMOV
Thanks to its extraordinary geological wealth, Jáchymov experienced several clearly distinguishable mining periods. In each era, different mineral resources were extracted on a large scale. Every period eventually ended in decline, but unlike many other mining towns, Jáchymov managed to reorient itself and recover. Although some phases overlapped, they can still be relatively precisely defined. Each left specific marks on both the landscape and the town itself.
1. The Silver Era (1516–c. 1600)
From 1516 until roughly the end of the 16th century, silver ores were the main target of mining activity. The beginning of extraction was rapid and exceptionally intensive. Within a few decades, Jáchymov became one of the most important towns not only in the Kingdom of Bohemia but in all of Europe. Thalers were minted here, giving their name to the later dollar. In the second half of the century, however, yields declined significantly and gradual decay followed. Nevertheless, during this period the town reached its peak economically, culturally, and scientifically.
Remnants of this era include mining pits, small waste heaps near former silver mines, adits, terrain irregularities left by ore washing, and extensive waterworks. Most of these traces are now covered by vegetation and can only be recognized by attentive observers.
2. The Era of Cobalt and Base Metals (c. 1600–1850)
The decline of silver mining was followed relatively smoothly by the extraction of cobalt and other base metals. This phase can be dated approximately between 1600 and 1850. Cobalt was primarily used in the production of blue pigments and enamels. Jáchymov became an important source of this raw material, although it did not seriously threaten the Saxon monopoly in metal processing. Nevertheless, it represented a significant transitional period.
3. The Era of Uranium Colours (c. 1850–1908)
After the mid-19th century, uranium ore began to be mined for the production of uranium colours. These were used mainly for colouring glass and porcelain. Uranium pigments produced in Jáchymov were highly valued, and the town effectively held a monopoly in their manufacture. This period lasted approximately until 1908.
4. The Era of Radium (1908–1945)
Between 1908 and 1913, Jáchymov held a global monopoly in radium production. Mining of the necessary raw material continued until 1945. Radium extracted from Jáchymov pitchblende was used in science and medicine and significantly enhanced the town’s international reputation. This period also marked the beginning of spa treatment using radioactive springs.
5. Post-War Uranium Mining (1945–1962)
Between 1945 and 1962, uranium mining intensified dramatically to supply the Soviet Union. Jáchymov thus played a key role in the development of the Soviet nuclear programme, including the first reactor launched in 1946 and the development of the atomic bomb. This led to massive mining operations and the establishment of labour and penal camps in the region.
This era left the most visible scars on the landscape. Enormous waste heaps filled entire valleys; some are still used as sources of construction material. At the same time, they contain substantial amounts of residual uranium ore – estimates speak of thousands of tons. Former mining structures and deep wounds in both the landscape and collective memory testify to this period. The suffering of political prisoners forced into labour remains inseparably linked to it.
6. The Era of Radon Water (since 1906 to the present)
The final phase is the extraction of radioactive water for spa treatment. This process began as early as 1906, but its real development came after the end of deep mining. The Jáchymov spa continues to use radon water as the basis of its therapeutic methods, building on more than a century of tradition.
Each of these periods brought Jáchymov something different – wealth, fame, technological progress, but also decline, environmental damage, and human tragedy. Together they shaped the town, its inhabitants, and the surrounding landscape, carrying the name of Jáchymov across the world.
