| An amygdaloidal variety containing calcareous spar and zeolite occurs S. of Dudley. |
| Solutions passed through a filter bed of zeolite minerals undergo ion exchange as particular ions or molecules become trapped within the crystal lattice. |
| Engineers have proposed passing Martian atmosphere through zeolite crystals. |
| It passes then in a cylinder seals containing a special matter: the zeolite which has the property to retain nitrogen and to let pass oxygen. |
| There are more than eighty different natural zeolite minerals and many hundreds of synthetic zeolites with no naturally occurring equivalents. |
| The nanosize zeolite may be chemically modified so that it will graft onto a support. |
