Albrecht von Groddeck

He contributed to studies on lithology and ore distribution, classifying ore deposits into 57 different kinds based on the pattern of distribution and association with structure of the surrounding rocks.

Groddeck was born in Danzig, son of a Prussian officer in the Commercial and Admiralty Court, and was educated at the local gymnasium after which he may have taken an interested in mining due to an uncle who was a Prussian mine superintendent.

Following the retirement of Roemer, he taught mineralogy and paleontology at the mining academy.

He also wrote a doctoral dissertation at the University of Göttingen in 1867 on ores in the Upper Harz mountains.

[3] Among Groddeck's contribution was the classification of ore types into 57 groups based on origin and geometry of distribution.