User:Chris857/Pentagonite

Pentagonite is a rare mineral with formula Ca(VO)Si4O10&middot;4(H2O).


 * http://webmineral.com/data/Pentagonite.shtml
 * http://www.mindat.org/min-3152.html
 * http://www.minsocam.org/ammin/AM58/AM58_405.pdf
 * http://www.handbookofmineralogy.com/pdfs/Pentagonite.pdf