Akdalaite
A variety of Minerals
What is Akdalaite?
Akdalaite 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.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Akdalaite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Akdalaite Localities Map
See where Akdalaite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- White, pale greenish yellow in thin section
- Hardness (Mohs)
- 7 - 7.5
- Density
- 3.673 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- Al10O14(OH)2 formerly here as 5Al2O3.H2O
- Elements
- Al, H, O
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Akdalaite FAQs
How do I identify Akdalaite?
Akdalaite can be identified by its hardness of 7 - 7.5 on the Mohs scale, White color. Look for these key characteristics when examining specimens.
What color is Akdalaite?
Akdalaite typically appears in White, pale greenish yellow in thin section. Color can vary depending on impurities and formation conditions.
How hard is Akdalaite?
Akdalaite has a hardness of 7 - 7.5 on the Mohs scale. This makes it a relatively hard mineral suitable for jewelry.
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