Microcline, Natrolite, Gonnardite

Specimen ID: NHD-293

Microcline : K(AlSi3O8)
Natrolite : Na2Al2Si3O10·2H2O
Gonnardite : (Na,Ca)2(Si,Al)5O10·3H2O
As recorded:
Midtfjellet Quarry, Malerød, Larvik, Vestfold, Norway
Mindat locality:

Photo added to mindat.org

Microcline crystals with natrolite. The white coating on the natrolite xls is gonnardite transformed from originally paranatrolite. Width of picture is 6x4 cm. Collected in March 2011.
Svein A. Berge - 20th January 2012
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