Search Mineralpedia – A Mineral Photo Database and Identification Guide

Named as an analogue of agardite-Y which in turn was named in honor of Jules Agard, a geologist with the Bureau de Recherches Geologiques et Minieres in Orleans, France, and for the dominance of lanthanum over the other rare earth elements. Agardite-La is a rare mineral that can be found in small amounts in oxidized hydrothermal polymetallic mineral deposits in localities in the United States, Greece, England, Germany, and Italy, among only a few others.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/agardite-(La).pdf

Named as an analogue of agardite-Y which in turn was named in honor of Jules Agard, a geologist with the Bureau de Recherches Geologiques et Minieres in Orleans, France, and for the dominance of neodynium over the other rare earth elements. Notable localities for Agardite-Nd include at Gengenbach, the Clara mine, and Wittichen in the Schwarzwald Mountains in Germany, Wheal Alfred in Cornwall, England, and at Osenovlak near Sofija in Bulgaria. A few other localities are known.

Ref. Minerals and their Localities, Bernard, J.H. and Hyršl, J. (2004)

Named for engineer of the Mineralogy Laboratory of the French Atomic Energy Commission in Paris, Henri Agrinier. It is a rare mineral that can be found only at the Margnac mine in Compreignac in Haute-Vienne, France, where it occurs in an oxidized uranium deposits in association with uranophane and gummite. Agrinierite is highly radioactive.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/agrinierite.pdf