Agrellite
Appearance
Agrellite | |
---|---|
Allgemein | |
Kategorie | Mineral |
Identification | |
Color | White, grayish-white, greenish-white |
Crystal habit | Lath - shaped like a small, thin plaster lath, rectangular in shape |
Cleavage | perfect |
Mohs scale hardness | 5.5 |
Luster | pearly |
Streak | white |
Diaphaneity | transluscent |
Specific gravity | 2.88 |
Optical properties | biazial |
Agrellite (NaCa2[F|Si4O10]) is a mineral found in Quebec, Canada.
It is named in honour of Stuart Olof Agrell. [1]
External links
- Fact sheet from mindat.org
- Fact sheet from webmineral.com
References
- ^ first reported in the Canadian Mineralogist (1976), vol. 14, pp. 120-126