Thaumasite : Ca3(SO4)[Si(OH)6](CO3)·12H2O
Mindat locality:
Photo added to mindat.org
“Beautiful group of spray white crystals of thaumasite up to 0,7 mm
Photo Bernardino Turconi, Collection Domenico Preite
This photo is posted (page 178) in the excellent book "I MINERALI DEL SOMMA-VESUVIO" by Massimo Russo & Imma Punzo, AMI Ed, Cremona, Italy.”
Domenico Preite - 26th November 2007
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Domenico Preite - 17th January 2008
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