| Tamarugite | |
|---|---|
 | |
| General | |
| Category | Sulfate mineral |
| Formula (repeating unit) | NaAl(SO4)2 · 6H2O |
| IMA symbol | Tmr |
| Strunz classification | 7.CC.10 |
| Dana classification | 29.5.3.1 |
| Crystal system | Monoclinic |
| Crystal class | Prismatic (2/m) |
| Space group | P21/a (no. 14) |
| Identification | |
| Color | Colorless |
| Crystal habit | Prismatic, tabular |
| Twinning | Polysynthetic |
| Cleavage | {010} perfect |
| Mohs scale hardness | 3 |
| Luster | Vitreous |
| Diaphaneity | Transparent |
| Specific gravity | 2.07 |
| Density | 2.07 (measured) |
| Optical properties | Biaxial (+), colorless (transmitted light) |
| 2V angle | 60° (measured), 48° (calculated) |
| Solubility | Soluble in water |
| Other characteristics | Slightly astringent and sweet taste |
| References | |
Tamarugite (NaAl(SO4)2·6H2O) is a colorless monoclinic sulfate mineral.
Deposits containing tamarugite are geographically dispersed with occurrences of the mineral on all seven continents (Antarctica, Oceania, North America, South America, Europe, Asia, Africa). The mineral's name comes from the Tamarugal Pampa locality in Chile. It is also known as lapparentite.
See also
References
- Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- ^ Webmineral.com - Tamarugite
- ^ Mindat.org - Tamarugite
- Mereiter, Kurt (15 October 2013). "Redetermination of tamarugite, NaAl(SO 4 ) 2 ·6H 2 O". Acta Crystallographica Section E. 69 (10): i63 – i64. doi:10.1107/S1600536813025154. PMC 3790334. PMID 24098156.
Bibliography
- Palache, P.; Berman H.; Frondel, C. (1960). "Dana's System of Mineralogy, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. (Seventh Edition)" John Wiley and Sons, Inc., New York, pp. 466–468.
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