Home > Alfred Des Cloizeaux

Des Cloizeaux was born at Beauvais, in the department of Oise. He studied with Jean-Baptiste Biot at the Collège de France. He became professor of mineralogy at the École Normale Supérieure and afterwards at the Muséum National d'Histoire Naturelle in Paris. He studied the geysers of Iceland, and wrote also on the classification of some of the eruptive rocks; but his main work consisted in the systematic examination of the crystalThis article is about the form of solid matter. For other uses of this word, see Crystal (disambiguation . Insulin Crystals A crystal is a solid in which the constituent atoms, molecules, or ions are packed in a regularly ordered, repeating pattern extends of numerous minerals, in researches on their opticalSee also list of optical topics. Optics is a branch of physics that describes the behavior and properties of light and the interaction of light with matter. Optics explains and is illuminated by optical phenomena. The field of optics usually describes the properties and on the subject of polarizationThis article treats polarization in electrodynamics. Other articles treat polarization in electrostatics, polarization in politics and polarization in psychology. In electrodynamics, polarization is a property of waves, such as light and other electromagn. He wrote especially on the means of determining the different feldsparFeldspar (from the German Feld field, and Spat a rock that does not contain ore) is the name of an important group of rock-forming minerals which make up perhaps as much as 60% of the Earth's crust. They crystallize from magma in both intrusive and extruss.

Des Cloizeaux was elected as a member of the French Academy of Sciences in 1869, and was its President in 1889. He was awarded the Wollaston MedalThe Wollaston Medal is a scientific award for geology, the highest award granted by the Geological Society of London. The medal is named after William Hyde Wollaston, and was first awarded in 1831. It was originally made of palladium, a metal discovered b by the Geological Society of LondonThe Geological Society of London is a learned society based in the United Kingdom with the aim of "investigating the mineral structure of the Earth". It is the oldest geological society in the world. The Society was founded in 1807. It was partly the outc in 1886. His best-known books are Leçons de cristallographie (1861) and Manuel de minéralogie (2 vols., Paris, 1862, 1874 and 1893).

This article incorporates text from the public domain 1911 Encyclopædia Britannica. 1911 Britannica