View source for Alum-(Na)

{{Infobox mineral
| name        = Alum-(Na)
| category    = [[Sulfate mineral]]s, alum series
| boxwidth    =
| boxbgcolor  =
| image       =
|   imagesize   =
|   alt         =
|   caption     =
| formula     = NaAl(SO<sub>4</sub>)<sub>2</sub>·12H<sub>2</sub>O
| strunz      = 07.CC.20
| dana        = 29.5.5.2
| symmetry    = 2/m <u style="text-decoration:overline">3</u> 
| Z           = 4
| molweight   = 458.28 g/mol
| color       = colorless
| system      = [[Cubic crystal system|Cubic]]
| cleavage    =  
| mohs        = 3
| luster      = vitreous
| streak      = white
| diaphaneity = transparent  
| density     = 1.67 g/cm<sup>3</sup>
| refractive  = ''n'' = 1.4388
| birefringence = 
| 2V          = 
| solubility  = soluble
| alteration  = 
| references  = <ref name="WebMineral">{{WebMineral-ref | name = Alum-(Na) | url = http://webmineral.com/data/Alum-%28Na%29.shtml | accessdate = 2009-11-28}}.</ref><ref name="Mindat">{{MinDat-ref | name = Alum-(Na) | id = 3703 | accessdate = 2009-11-28}}.</ref><ref>{{citation | last1 = Cromer | first1 = D. T. | last2 = Kay | first2 = M. I. | last3 = Larson | first3 = A. C. | title = Refinement of the alum structures. II. X-ray and neutron diffraction of NaAl(SO<sub>4</sub>)<sub>2</sub>·12H<sub>2</sub>O, &gamma;-alum | journal = Acta Crystallogr. | volume = 22 | issue = 2 | year = 1967 | pages = 182–87 | doi = 10.1107/S0365110X67000313}}.</ref> 
}}

'''Alum-(Na)''', also known as '''sodium alum''', is a [[sulfate mineral]], one of the [[alum]] series, with formula NaAl(SO<sub>4</sub>)<sub>2</sub>·12H<sub>2</sub>O. It is a hydrated form of [[sodium aluminium sulfate]].

The name alum-(Na) was introduced by the Commission on New Minerals and Mineral Names (CNMMN) of the [[International Mineralogical Association]] (IMA) in 2008, as part of a move to have single words (with hyphenated suffixes as necessary) for all mineral names.<ref>{{citation | title = Tidying up mineral names: an IMA-CNMNC scheme for suffixes, hyphens and diacritical marks | url = http://pubsites.uws.edu.au/ima-cnmnc/tidyingupnames.pdf | first = Ernst A.J. | last = Burke | journal = Mineralogical Record | volume = 39 | issue = 2 | year = 2008 | pages = 131–35}}.</ref>

==References==
{{reflist}}

[[Category:Sodium minerals]]
[[Category:Aluminium minerals]]
[[Category:Sulfate minerals]]

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