Mineralpedia Details for Agardite-(Nd)
Agardite-(Nd)
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)
- Formula
- Cu2+6Nd(AsO4)3(OH)6ยท3H2O
- Crystal System
- Hexagonal
- Crystal Habit
- Radial, Prismatic, Aggregates
- Luster
- Vitreous (Glassy)
- Color
- grass green, sky blue
- Streak
- greenish white
- Class
- Hexagonal - Dipyramidal
- Hardness
- 3-4
- WebMineral
- View Agardite-(Nd)
- Mindat
- View Agardite-(Nd)
Agardite-(Nd) from Imperial mine, Esmeralda Co., Nevada, United States
Very fine blue-green acicular Agardite-(Nd) to 1mm with beads of green Conichalcite. Some of the most superb microcrystals under magnification!
Click thumbnail images for larger view.
