Postscript: Floater datolite crystal from Campidelle Bratte, Valmozzola, Parma, Italy

摘要

Datolite, CaBSiO4(OH), is known in fine specimens from a number of localities worldwide, including Dalnegorsk, Russia, and Charcas, Mexico. The species was discovered in 1804 in Arendal, Norway, and was named by Jens Esmark (1763-1839) in 1806, after the Greek work datysthai for "divide" because the mineral is often friable and granular in texture.