PORTITE DISCREDITED = NATROLITE AND NEW DATA ON SCHNEIDERITE (= LAUMONTITE)

Citation
M. Franzini et N. Perchiazzi, PORTITE DISCREDITED = NATROLITE AND NEW DATA ON SCHNEIDERITE (= LAUMONTITE), European journal of mineralogy, 6(3), 1994, pp. 351-353
Citations number
16
Categorie Soggetti
Mineralogy
ISSN journal
09351221
Volume
6
Issue
3
Year of publication
1994
Pages
351 - 353
Database
ISI
SICI code
0935-1221(1994)6:3<351:PD=NAN>2.0.ZU;2-8
Abstract
The sample of portite studied by D'Achiardi (1873), a fragment of the holotype of Meneghini & Bechi (1852), was rediscovered in some of the oldest collections of the Natural History Museum of Pisa University. X -ray and optical data demonstrate that portite is identical to natroli te, thus allowing us to discredit the mineral name portite. This propo sal is approved by the I.M.A, Commission on New Minerals and Mineral N ames. Moreover, X-ray data show ''schneiderite'' to be identical to la umontite.