Cadwaladerite

A variety of Minerals

Cadwaladerite specimen - rock identification

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).

Cadwaladerite Market Value Calculator

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Cadwaladerite Localities Map

See where Cadwaladerite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview
North ZoneCentral RidgeSouth Basin

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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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