May 19 2014
Padmaite is an isometric-tetartoidal yellow mineral containing selenium, palladium and bismuth. It is a member of the cobaltite group.
The mineral was first discovered in 1991 in the Padma river, Karlia, Russia. It was named for its place of discovery.
Properties of Padmaite
The following are the key properties of Padmaite:
- Cell Data
- Space Group: n.d
- a = b = c = α = β = γ = Z = n.d.
- Crystal Data
- Point Group: n.d
- Twinning: n.d
- Chemical Composition
| Elements |
Content |
| Bi |
52.99 |
| Pd |
26.99 |
| Se |
20.02 |
| Total |
100 |
- Optical Properties
- Optical Class: Pleochroism: Orientation: Dispersion: Absorption: n = ω = ε = α = β = γ = 2V(meas.) = n.d.
- Estimated Properties
| Electron density |
Bulk density (electron density) = 8.08 g/cm3
note: Specific gravity of Padmaite = 9.77 g/cm3 |
| Photoelectric |
PEPadmaite = 1116.91 barns/electron
U = PEPadmaite x ρElectron density = 9020.61 barns/cm3 |
| Fermion index |
Fermion index = 0.07
Boson index = 0.93 |
Radioactivity
|
Padmaite is not radioactive
|
How to Identify Padmaite
Padmaite is an opaque yellow mineral, having a metallic luster surface. The hardness of padmaite ranges from 3 to 4.
Global Distribution
Padmaite is largely distributed in Srednyaya Padma U-V deposit, Zaonezhie peninsula, Lake Onega, Karelia Republic, Northern Region, Russia.
References