Amarantite
| Amarantite | |
|---|---|
 | |
| General | |
| Category | Mineral |
| Formula (repeating unit) | Fe3+2[O|(SO4)2]·7H2O |
| Unit cell | V 674.09 ų (Calculated from Unit Cell) |
| Identification | |
| Color | Amaranth-Red to Brownish Red, Orange-Red |
| Cleavage | Perfect on {010} and {100}, perfect. |
| Tenacity | Brittle |
| Mohs scale hardness | 2½ |
| Luster | Vitreous |
| Streak | Lemon-Yellow |
| Diaphaneity | Transparent |
| Density | 2.189 - 2.286 g/cm3 |
| Pleochroism | Visible |
Amarantite is anamaranth-red to brownish mineral[1] with the general formula of Fe3+2[O|(SO4)2]·7H2O.[2] The name comes from the Greek word αμάραντος which means amaranth, an imaginary undying red flower, in allusion to its color.[3]
References
Wikimedia Commons has media related to Amarantite.
- ^ http://www.mindat.org/min-182.html
- ^ Giacovazzo C., Menchetti S. (1968) - Dati strutturali sulla amarantite. Periodico di mineralogia – Roma, pp. 727-731
- ^ Zeitschrift für Kristallographie: 127: 261-275
- Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 611-613.