Agrinierite ( born Agrinierite ) is a very rare uranium mineral belonging to the class of oxides . Chemical formula: K 2 Ca (UO 2 ) 6 O 6 (OH) 4 · 5H 2 O.
| Agrinieri | |
|---|---|
| Formula | K 2 Ca (UO 2 ) 6 O 6 (OH) 4 · 5H 2 O |
| Physical properties | |
| Colour | Orange |
| Color features | light yellow |
| Transparency | Transparent, translucent |
| Hardness | 5.5 |
| Cleavage | Clear over {001} |
| Density | 5.7 g / cm³ |
| Syngony | Rhombic (orthorhombic) |
Found only in the Margnac Mine uranium deposit in France . Named in honor of Henry Agrinier (Henri Agrinier, 1928-1971), engineer of the mineralogical laboratory of the Atomic Energy Commissariat ( Paris , France ).
Literature
- Cesbron F., Brown WL, Bariand P. and Geffroy J. (1972): Rameauite and Agrinierite, two new hydrated complex uranyl oxides from Margnac, France. Mineralogical Magazine 38, 781-789. - American Mineralogist (1973) 58, 805 (abstract).
- Cahill CL and Burns PC (2000): The structure of agrinierite, a Sr containing uranyl oxide hydrate mineral. American Mineralogist 85, 1294-1297.
- Anthony JW, Bideaux RA, Bladh KW and Nichols MC (1997): Handbook of Mineralogy, Volume 3: Halides, Hydroxides, Oxides. Mineral Data Publishing (Tucson, AZ), 6.
- Burns PC (2005): U 6+ minerals and organic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist 43, 1839-1894.