Heulandite Subgroup : (Na/Ca/K)5-6[Al8-9 Si27-28 O72]· nH2O
Photo added to mindat.org
“Heulandite crystals
Wroblen Florian collected in 2003
Zeolites collection of Ferdinando Giovine”
Ferdinando Giovine - 5th November 2022
Photo added to mindat.org
“Heulandite crystals
Wroblen Florian collected in 2003
Zeolites collection of Ferdinando Giovine”
Ferdinando Giovine - 5th November 2022
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