at the royal mining laboratory in Stockholm, the Laboratorium Chemicum. There he studied chemical analysis and smelting.

Between 1748, when he completed his studies, and 1758, Cronstedt held a variety of positions. In 1756, he was disappointed to be passed over for a position at the Bureau of Mines, but in 1758, he became a superintendent of mining operations for the mining districts of Öster and Västerbergslagen.

In 1760, Cronstedt married Gertrud Charlotta Söderhielm (1728-1769). In 1761,

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