dufrenoysite was named after him. There is a street in Paris named in his honor. Minerals described by Dufrénoy confolensite — synonym for halloysite manganèse silicaté rose — synonym for rhodonite fer carbonaté, 1827 — (synonym for chalybite), mixture of siderite and carbonaceous clays huréaulite, 1829 nussièrite, 1835 — synonym for phosphohedyphane References Attribution External links Ours-Pierre-Armand DUFRENOY (1792-1857). École Polytechnique alumni Mines Paris - PSL alumni Corps des mines 1792 births 1857 deaths Scientists from Paris French geologists French mineralogists Wollaston Medal winners