Stilbite
UNB-2016-0520Minerals » Tectosilicates » Zeolite
Description
Yellowish-red bladed aggregates of Stilbite with a vitreous lustre.
Stilbite (NaCa2Al5Si13O36 x 16H2O) can be white, greyish, yellowish, red or brown. Lustre is vitreous but pearly on cleavage and streak is colourless. Hardness is 3 1/2 to 4 and cleavage is perfect in one direction. Stilbite usually occurs as bladed aggregates of numerous twinned crystals that resemble "wheat sheaves". Stilbite can also be radial, globular, or tabular (rare).
Specifications
| Object name | Stilbite |
|---|---|
| ID | UNB-2016-0520 |
| Legal status | Permanent collection |
| Category | Mineral |
| Classification | Mineral group: Tectosilicates Sub-group: Zeolite |
| Composition |
|
| Origin | Unknown |
| Pieces | 1 |
| Partial | No |
| Measurements |
|
Publications
- Chesterman, C.W. 1979. Audubon Society, Field Guide to North American Rocks and Minerals. Knopf.