Yushkinit ( born Yushkinite ) is a hybrid vanadium mineral from the valeriite group ( born Valleriite ). It is found on Pai Khoi , the Polar Urals [1] .
| Yushkinit | |
|---|---|
| Formula | V 1-x S • n [(Mg, Al) (OH) 2 ] |
| Physical properties | |
| Colour | Pinkish purple |
| Shine | Metal |
| Hardness | one |
| Cleavage | Very perfect |
| Density | 2.94 g / cm³ |
| Syngonia | |
It is named after the mineralogist academician N.P. Yushkin . Discovered by A. B. Makeev, T. L. Evstigneeva, N. V. Troneva, L. N. Vyalsov, A. I. Gorshkov and N. V. Trubkin. Approved by the KNM MMA in 1983 [2] .
Content
Morphology
The mineral is found in the form of isometric and scaly individuals ranging in size from 0.5 to 2 mm, as well as their linear aggregates up to 10-40 mm, which are easily split along the pinacoid planes of perfect cleavage.
The color is pinkish-purple with a strong copper-purple and orange-red tint. Glitter is bright, metallic. In reflected light, anisotropic, strong birefringence. Uniaxial, optically negative [3] .
Properties
- Hardness less than 1 on the Mohs scale.
- Density 2.94 ± 0.02 g / cm 3 .
Education Terms
Yushkinit is stable in natural conditions.
Associates mainly with sphalerite , sulvanite , fluorite , quartz , calcite , dolomite , smitsonite , chlorite , patronite .
Deposits
Yushkinit was found on Pai-Khoi in the middle reaches of the Silova-Yakha River, in rock outcrops, 1.6 km below the Dolgodannogo Falls.
Notes
- ↑ Makeev A. B., Evstigneeva T. L., Troneva N.V. et al. // Mineralogical Journal. 1984. T. 6. No. 3. S. 91-97.
- ↑ Kovalchuk NS, Makeev AB // Geology of Ore Deposits. 2008. Vol. 50. No. 7. P. 503-517.
- ↑ Makeev A. B., Kovalchuk N. S. Yushkinit, V 1-x S • n [(Mg, Al) (OH) 2 ]. Syktyvkar: [ which one? ] . 2006.70 s.