{{Infobox mineral | name = Vantasselite | boxwidth = | boxbgcolor = | image = Vantasselite.jpg | imagesize = 260px | alt = | caption = Vantasselite, from Bihain, Vielsalm, Luxembourg Province, Belgium | category = Phosphate minerals | formula = Al<sub>4</sub>(PO<sub>4</sub>)<sub>3</sub>(OH)<sub>3</sub> •9H<sub>2</sub>O | IMAsymbol = Vts<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 = 8.DC.37 | system = Orthorhombic <br/>Unknown space group | unit cell = a = 10.52&nbsp;Å, b = 16.54&nbsp;Å <br/>c = 20.37&nbsp;Å; Z&nbsp;=&nbsp;8 | color = white | colour = | habit = | twinning = | cleavage = | fracture = | tenacity = | mohs = | luster = pearly | streak = | diaphaneity = | gravity = | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = <ref name=Mindat/> }} '''Vantasselite''' is a rare aluminium phosphate mineral with formula: Al<sub>4</sub>(PO<sub>4</sub>)<sub>3</sub>(OH)<sub>3</sub> •9H<sub>2</sub>O. It crystallizes in the orthorhombic system and has a white color, a hardness of 2 to 2.5, a white streak and a pearly luster.<ref name=Handbook>{{cite web |last1=Anthony |first1=John W. |last2=Bideaux |first2=Richard A. |last3=Bladh |first3=Kenneth W. |last4=Nichols |first4=Monte C. |title=Vantasselite |url=http://www.handbookofmineralogy.org/pdfs/vantasselite.pdf |website=Handbook of Mineralogy |publisher=Mineral Data Publishing |access-date=26 June 2022 |date=2005|archiveurl=https://web.archive.org/web/20120224013522/http://rruff.geo.arizona.edu/doclib/hom/vantasselite.pdf|archivedate=February 24, 2012|url-status=live|df=mdy-all}}</ref>

It occurs in a quartzite quarry north of Bihain, Belgium It was first described in 1987 and named after Belgian mineralogist René Van Tassel.<ref name=Mindat>{{cite web|title=Vantasselite Mineral Information and Data|url=http://www.mindat.org/min-4150.html|publisher=Mindat.org|archiveurl=https://web.archive.org/web/20090410043050/http://www.mindat.org/min-4150.html|archivedate=April 10, 2009}}</ref><ref name=Handbook/>

==References== {{Reflist}}

Category:Phosphate minerals Category:Aluminium minerals Category:Orthorhombic minerals

{{phosphate-mineral-stub}}