The baron Axel Frederik Cronstedt (born the December 23rd 1722 with Ströpsta, Södermanland, Sweden; deceased the August 19th 1765) was a Chimiste Swedish. He discovered the Nickel in 1751. He described it like the copper of the devil . He was pupil of Georg Brandt, which discovered the Cobalt.

In 1756 it made another discovery: the Zeolite. Sources: translation of the English and German articles of Wikipedia