Tamarugite (NaAl(SO4)2·6H2O) is a colorless monoclinic sulfate mineral.Webmineral.com - TamarugiteMindat.org - Tamarugite
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 List of minerals
References
Handbook of Mineralogy
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.