isoclasite
noun
iso·cla·site
īˈsäkləˌ-,
-ˌzīt
: a mineral Ca2(PO4)(OH).2H2O consisting of a basic hydrous calcium phosphate occurring in small white crystals or columnar forms
Word History
Etymology
German isoklas isoclasite (from is- + -klas -clase) + English -ite