owl  

ATHENA

MINERALOGY

mlevy

Mineral:HELLANDITE-(Gd)
Formula:(Ca,Y)4(Gd,Y)2(Al,Fe3+,Ti4+)(Be,Li)2B4Si4O22(O,F,OH)2 (?)
Crystal System:Monoclinic
Strunz Nr:8/F.36-12
Group:Hellandite group
References:L 11(1999), 27
Type Locality:Predazzo, Italy

mlevy

[Mineral Search]     [Abbreviations]     [Pictures]     [Athena]

mlevy

Send comments on page to mail pp

Copyright © 1986, 1994, 2018 ATHENA - Pierre Perroud. All Rights Reserved.