Thomsonite-Ca : NaCa2[Al5Si5O20]·6H2O
As recorded:
Vitiello Quarry, Terzigno, Mount Vesuvius, Somma-Vesuvius Complex, Naples, Campania, Italy
Photo added to mindat.org
“2.54 mm Thomsonite crystal. Photo & Collection M.Chinellato”
Matteo Chinellato - 25th August 2009
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