Anandite is a mica mineral , barium and iron silicate (Ba, K) (Fe, Mg) 3 [(O, OH) 2 | (Si, Al, Fe) 4 O 10 ].
| Anandit | |
|---|---|
| Formula | (Ba, K) (Fe, Mg) 3 [(O, OH) 2 |
| Physical properties | |
| Color | The black |
| Transparency | Opaque |
| Hardness | 3-4 |
| Cleavage | Perfect |
| Density | 3.94 g / cm³ |
| Syngonia | Monoclinic |
Contains (%): BaО - 20.59; K 2 O - 1%; FeO - 32.14; MgO - 3.34; SiO 2 - 26.49; Al 2 O 3 - 6.15; Fe 2 O 3 - 6.8; H 2 O + - 2.11. Impurities: MnO, TiO 2 , CaO, Na 2 O. Monoclinic syngony . Black color. Opaque. Brilliant. Cleavage is perfect. Density - 3.94 g / cm 3 . Hardness is 3-4.
The mineral was discovered in 1967 . Named after Ananda Kumaraswamy .
Forms monomineral layers with a thickness of 0.6-5 cm in magnetite ores of the Vilagedera deposit about. Sri Lanka along with chalcopyrite , pyrite and pyrrhotite .