Hellandite (group)

Properties

Formula X4Y2ZT2[B4Si4O22]W2
Classification Nesosilicate
Members Hellandite-(Ce), Ciprianiite, Tadzhikite-(Ce), Mottanaite-(Ce), Hellandite-(Y), Ferri-mottanaite-(Ce), Ferri-hellandite-(Ce)
IMA Status IMA Approved Group Name
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags Silicate, Group

Composition

☐, H, Ca, Mn, Fe, Si, O, F, REE, Al, Li, Na, Ti, U, Y, Th, Be, B