Alfred Des Cloizeaux

Alfred Louis Olivier Legrand Des Cloizeaux ( born October 17, 1817 in Beauvais, † May 6, 1897 in Paris) was a French mineralogist.

In Cloizeaux was born in Beauvais, Oise in the French and studied at the Collège de France in Paris with Jean -Baptiste Biot. Later he became professor of mineralogy at the Ecole Normale Superieure and then at the Museum of Natural History in Paris. He dealt with the Icelandic geysers and published on the classification of igneous rocks. However, his research was focused on the crystal system (including that of feldspar ) and the optical properties of minerals (particularly in polarized light).

1869 Des Cloizeaux member of the Académie des Sciences, and in 1889 its president. In 1870, he received the Rumford Medal of the Royal Society, in which he was elected in 1875 as " Foreign Member ". In 1886, the Wollaston Medal of the Geological Society of London awarded him.

Cloizeaux applies along with Augustin Alexis Damour as describer of the mineral Chalkomenit.

In his honor, was awarded the mineral Descloizit his name.