Barrerite

A variety of Minerals

Barrerite specimen - rock identification

What is Barrerite?

Barrerite is a tectosilicate mineral and a member of the zeolite family. It is one of the rarer zeolites. It was named for Richard Barrer, a New Zealand-born chemist. Barrerite crystal are white to pinkish, with a vitreous-glassy luster. The crystal system is orthorhombic and is flat and tabular in appearance. It has a Mohs hardness of 3 to 4 and its cleavage is perfect. Barrerite has a white streak and a density of 2.13. It was first described in 1974 for an occurrence in Sardinia at Sant' Efisio Tower on Cape Pula in Cagliari Province. It has also been reported from Rocky Pass, Kuiu Island, Alaska, and a few other localities.

Barrerite Market Value Calculator

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Barrerite Localities Map

See where Barrerite 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
White, Pink
Hardness (Mohs)
3 - 4
Density
2.08 g/cm³
Streak
White

Chemical Properties

Chemical Formula
(Na,K,Ca0.5)2[Al2Si7O18] · 7H2O
Elements
Al, Ca, H, K, Na, O, Si
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