Cadwaladerite
A variety of Minerals
What is Cadwaladerite?
Cadwaladerite is a rare aluminium halide mineral with formula: AlCl(OH)2·4(H2O). It was reported for an amorphous substance associated with sulfate minerals and embedded in a halite crystal cluster. Its status is uncertain due to inadequate data. It was first described in 1941 for an occurrence in mine dumps of the Victoria Segunda mine Cerros Pintados, Iquique province, Tarapacá Region, Chile. It was named for Charles Meigs Biddle Cadwalader, president of the Academy of Natural Sciences. Lesukite was discredited (IMA2018-H).
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Cadwaladerite 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.
Cadwaladerite Localities Map
See where Cadwaladerite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Yellow
- Density
- 1.66 g/cm³
Chemical Properties
- Chemical Formula
- Al5(H2O)3(OH)12·n(Cl,H2O)
- Elements
- Al, Cl, H, O
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Cadwaladerite FAQs
How do I identify Cadwaladerite?
Cadwaladerite can be identified by its Yellow color. Look for these key characteristics when examining specimens.
What color is Cadwaladerite?
Cadwaladerite typically appears in Yellow. Color can vary depending on impurities and formation conditions.
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