Akdalaite Explained
| Akdalaite |
| Imasymbol: | Akd |
| Color: | White, pale greenish yellow in thin section |
| Fracture: | Irregular/uneven |
| Mohs: | 7–7.5 |
| Luster: | Vitreous |
| Streak: | White |
| Diaphaneity: | Translucent |
| Gravity: | 3.68 |
Akdalaite (IMA symbol: Akd[1]) is a very rare mineral found in Kazakhstan and has the formula .[2] It was formerly believed to be . It is therefore the same as tohdite an artificially produced phase. Studies on the crystal structure and spectra indicate that this is an aluminium oxide hydroxide.[3]
External links
Notes and References
- Warr. L.N.. 2021. IMA-CNMNC approved mineral symbols. Mineralogical Magazine. 85. 3. 291–320. 10.1180/mgm.2021.43. 2021MinM...85..291W. 235729616. free.
- A New Occurrence and New Data on Akdalaite, a Retrograde Mineral from UHP Whiteschist, Kokchetav Massif, Northern Kazakhstan, Shyh-Lung Hwang, Pouyan Shen, Hao-Tsu Chu, Tzen-Fu Yui, International Geology Review, 48, 8, 2006, 754-764,
- Ab-initio quantum mechanical study of akdalaite (5Al2O3· H2O): structure and vibrational spectrum, Demichelis, R.; Noel, Y.; Zicovich-Wilson, C. M.; Roetti, C.; Valenzano, L.; Dovesi, R., Journal of Physics: Conference Series, Volume 117, Issue 1, pp. 012013 (2008).,
