Minerals
Akdalaite
akdalaite
Al5O7(OH)
Akdalaite: Mineral information, data and localities. — via www.mindat.org · Source
Overview
Akdalaite (IMA symbol: Akd) is a very rare mineral found in Kazakhstan and has the formula 5Al2O3·H2O. It was formerly believed to be 4Al2O3·H2O. 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.