Chalcoalumite
A variety of Minerals
What is Chalcoalumite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Chalcoalumite 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.
Chalcoalumite Localities Map
See where Chalcoalumite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Turquoise-green, pale blue, bluish-grey; colourless in transmitted light.
- Hardness (Mohs)
- 2.5
- Density
- 2.25 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- CuAl4(SO4)(OH)12 · 3H2O
- Elements
- Al, Cu, H, O, S
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Chalcoalumite FAQs
How do I identify Chalcoalumite?
Chalcoalumite can be identified by its hardness of 2.5 on the Mohs scale, Turquoise-green color. Look for these key characteristics when examining specimens.
What color is Chalcoalumite?
Chalcoalumite typically appears in Turquoise-green, pale blue, bluish-grey; colourless in transmitted light.. Color can vary depending on impurities and formation conditions.
How hard is Chalcoalumite?
Chalcoalumite has a hardness of 2.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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