lueneburgite
noun
lue·ne·burg·ite
ˈlünəˌbərˌgīt
plural -s
: a mineral Mg3B2(OH)6(PO4)2.6H2O consisting of a hydrous basic phosphate of magnesium and boron
Word History
Etymology
German lüneburgit, from Lüneburg, Germany, its locality + German -it -ite