Stilbite
UNB-2016-0470Minerals » Tectosilicates » Zeolite
Description
Sample of yellowish broad "wheat sheaves" of Stilbite with a vitreous lustre. Individual aggregates are ~2.0 cm X 1.5 cm X 1.5 cm.
Stilbite (NaCa2Al5Si13O36 x 16H2O) can be white, greyish, yellowish, red or brown. Lustre is vitreous but pearly on the cleavage and the streak is colourless. Hardness is 3 1/2 to 4 and cleavage is perfect in one direction. Stilbite usually occurs as bladed aggregates that can resemble "wheat sheaves" but can also be radial, globular or tabular crystals (rare).
Specifications
| Object name | Stilbite |
|---|---|
| ID | UNB-2016-0470 |
| Legal status | Permanent collection |
| Category | Mineral |
| Classification | Mineral group: Tectosilicates Sub-group: Zeolite |
| Composition |
|
| Origin | Partridge Island, Nova Scotia, Canada |
| Pieces | 1 |
| Partial | No |
| Measurements |
|
Map of Origin
Publications
- Chesterman, C.W. 1979. Audubon Society, Field Guide to North American Rocks and Minerals. Knopf.