Randan (French pronunciation: [ʁɑ̃dɑ̃]; Occitan: Randans) is a commune in the Puy-de-Dôme department in Auvergne-Rhône-Alpes in central France.

The place gives its name to Randanite, a soluble silica that occurs as fine earth near Randan and near Algiers.[3] In the late 19th century the official composition of the dynamite at the Poudrerie nationale de Vonges and other French powder works was 75% nitroglycerin, 20.8% randanite, 3.8% Vierzon silica and 0.4% magnesium carbonate.[4]

Randan was a holiday destination of the royal family of the House of Orléans in the early nineteenth century, thanks to the Château in Randan.

See also

References

  1. ^ "Répertoire national des élus: les maires" (in French). data.gouv.fr, Plateforme ouverte des données publiques françaises. 13 September 2022.
  2. ^ "Populations de référence 2022" (in French). The National Institute of Statistics and Economic Studies. 19 December 2024.
  3. ^ "Definitions of randanite", Drictionry.net, retrieved 2017-09-01
  4. ^ Figuier, Louis (1891), Les Merveilles de la science ou description populaire des inventions modernes (in French), vol. 2 des Suppléments, pp. 81-152)., Furne, Jouvet et Cie, retrieved 2017-09-01


Allikas: https://en.wikipedia.org/wiki/Randan,_Puy-de-D%C3%B4me
No tags for this post.