David K. Joyce

Heulandite, Pyroxene

5.0x3.3x3.3 cm
Dangoumos Township
Quebec, Canada

Heulandite, PyroxeneHeulandite, Pyroxene

Item number: 21892

Another example of hydrothermal alteration of primary silicates resulting in the formation of a zeolite mineral. In this case, sharp, white, well formed heulandite crystals have formed on much older pyroxene crystals. Nice example!