Kainosite-(Y)
| Kainosite | ||
|---|---|---|
2V angle Measured: 40°, Calculated: 38° to 52° | | |
| Dispersion | strong | |
| Other characteristics | high relief | |
Kainosite is a
Hitterø[2] and was named by Adolf Erik Nordenskiöld (1832–1901) in allusion to the Greek word for "unusual" for its rarity and exotic composition.[3]
Kainosite, is part of the
orthorhombic
crystal class minerals, which is a system that results from stretching a cubic lattice along two of its orthogonal pairs. Kainosite is a biaxial mineral, so the light entering its crystals will be polarized in two vibration directions (XYZ) for it has two optic axes. Because Kainosite is orthorhombic, the vibration directions XYZ coincide with the a,b,c crystallography axes.
Kainosite is very rare and mostly found in Russia in vugs, pegmatites, granites, and alkalic complex as an altered product of the mineral kuliokite. Classic samples have been discovered in Madawaska Mine, Bicroft Mine, and Greyhawk Mine, near Bancroft, Ontario.[4]
References
- S2CID 235729616.
- ^ Kainosite-(Y), WebMineral.com.Accessed 17 September 2010.
- ^ Kainosite-(Y), Mindat.org
- S2CID 201298402.
- Rumanova I.M,and Volodina G.F,and Belov N.V (1967) "The crystal structure of the rare earth ring silicate kainosite, Ca2(Y,Tr)2[Si4O12]CO3[H2O]". Soviet Physics Crystallography, 11, 485–491.