Calcite : CaCO3
Phillipsite-K : (K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
As recorded:
Vitiello Quarry, Terzigno, Mount Vesuvius, Somma-Vesuvius Complex, Naples, Campania, Italy
Collected by:
Photo added to mindat.org
“dimension area mm. 8x8
The brown calcite have a unusual form
self collected, photo and collection Luigi Chiappino ”
Luigi Chiappino - 12th January 2009
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