Mesolite, Thomsonite-Ca

Specimen ID: PCW-9DT

Mesolite : Na2Ca2Si9Al6O30·8H2O
Thomsonite-Ca : NaCa2[Al5Si5O20]·6H2O
Mindat locality:

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Sprays of white prismatic crystals of mesolite (analyzed at the Sapienza University of Rome), sprouting from light gray radiating spheres of thomsonite-Ca. Gift of Mr. Edgardo Signoretti, who collected the specimen. Collection and photos by Gianfranco Ciccolini.
Gianfranco Ciccolini - 18th September 2018
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