Lévyne-(Ca)

levyne-(Ca)

offretite

levyne-(Na)

zeolite

Images

Formula: Ca3(Si12Al6)O36.18H2O
Tectosilicate (framework silicate), zeolite
Specific gravity: 2.09 to 2.16
Hardness: 4 to 4½
Streak: White
Colour: Colourless, white, grey, yellow, red
Environments:

Basaltic cavities

Lévyne-(Ca) occurs most commonly in cavities in low silica volcanic rocks such as olivine basalt, and rarely in andesite, often associated with other zeolites, especially offretite and erionite (Dana). Localities

The type locality is Dalsnipa, Dalur, Húsavík Municipality, Sandoy, Faroe Islands.

Back to Minerals