{{Infobox mineral | name = Rosenbergite | boxwidth = | boxbgcolor = | image = Rosenbergite.jpg | imagesize = | alt = | caption = Acicular rosenbergite crystals from Le Cetine Mine, Siena, Tuscany, Italy | struct image = | struct caption = | struct imagesize = | struct2 image = | struct2 caption = | struct2 imagesize= | SMILES = | Jmol = | category = | formula = AlF<sub>3</sub>·3H<sub>2</sub>O | IMAsymbol = Ros<ref>{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA–CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3 |pages=291–320|doi=10.1180/mgm.2021.43 |bibcode=2021MinM...85..291W |s2cid=235729616 |doi-access=free}}</ref> | molweight = | strunz = | dana = | system = Tetragonal | class = 4 | symmetry = ''P4/n'' (no. 85) | unit cell = | color = | colour = | habit = | twinning = | cleavage = | fracture = | tenacity = | toughness = | mohs = 3–3.5 | luster = | streak = | diaphaneity = | gravity = | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | Curie temp = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = | var1 = | var1text = | var2 = | var2text = | var3 = | var3text = | var4 = | var4text = | var5 = | var5text = | var6 = | var6text = }}
'''Rosenbergite''' is a mineral with the chemical formula AlF<sub>3</sub>·3H<sub>2</sub>O. It is a trihydrate of aluminium fluoride.
It is colorless. Its crystals are tetragonal to dipyramidal. It is named after Philip E. Rosenberg, a United States geochemist. It is found in the Celtine Mine in Tuscany, Italy and Mount Erebus, Ross Island, Antarctica. It is not radioactive. Rosenbergite is rated 3–3.5 on the Mohs Scale.
==References== {{Reflist}}
==External links== *[http://www.webmineral.com/data/Rosenbergite.shtml Webmineral - Rosenbergite] *[http://www.mindat.org/min-3453.html Mindat.org - Rosenbergite] *[http://www.handbookofmineralogy.com/pdfs/rosenbergite.pdf Handbook of Mineralogy - Rosenbergite]
Category:Aluminium minerals Category:Fluorine minerals Category:Tetragonal minerals Category:Minerals in space group 85
{{Halide-mineral-stub}}