Mazzite

tectosilicate

phillipsite

Mazzite is the name for two minerals
Mazzite-Mg: Mg5(Si26Al10)O72.30H2O
Mazzite-Na: Na8(Si28Al8)O72.30H2O
Tectosilicates (framework silicates), zeolite group
Specific gravity: 2.11
Streak: White
Colour: Colourless
Environments:

Volcanic igneous environments
Hydrothermal environments

Mazzite occurs in basalt associated with phillipsite, chabazite and offretite. It is of hydrothermal origin.

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