Natrolite
UNB-2017-0205Minerals » Tectosilicates » Zeolite
Description
Two samples of Natrolite. One white sample and one yellowish-reddish in colour. Both are acicular, almost "Fan-like" to radial euhedral crystals. The white sample has a more vitreous lustre while the reddish-yellow sample has a more silky lustre.
Natrolite (Na2Al2Si3O10 x 2H2O) can be white, colourless, greyish, yellowish or reddish in colour with a vitreous or silky lustre. Streak is colourless and hardness is 5 to 5 1/2. Cleavage is perfect in one direction. Natrolite usually occurs as slender to acicular crystals but can also be radial, granular or compact in form.
Specifications
| Object name | Natrolite |
|---|---|
| ID | UNB-2017-0205 |
| Legal status | Permanent collection |
| Category | Mineral |
| Classification | Mineral group: Tectosilicates Sub-group: Zeolite |
| Composition |
|
| Origin | Unknown |
| Pieces | 2 |
| Partial | No |
| Measurements |
|
Publications
- Chesterman, C.W. 1979. Audubon Society, Field Guide to North American Rocks and Minerals.