Natural Zeolites - History, Morphology and Occurrence
A Collectors Perspective
Volker Betz, Taunusstein, Germany
|
|
|
|
Mesolite from Haldarsvík, Streymoy,
Føroyer |
Faujasite
from Quarry I., Limberg near Sasbach, Kaiserstuhl |
© 2009 by Volker Betz , all rights reserved