>Dear Hogwu,
I encountered following data about zorite:
>
NAME Sodium titanium niobium silicate hydrate *
MINR Zorite
FORM Na6 (Ti (Ti0.9 Nb0.1)4 (Si6 O17)2 (O H)5) (H2 O)10.5
= H26 Na6 Nb.4 O49.5 Si12 Ti4.6
TITL The OD structure of zorite
REF Kristallografiya
KRISA 24 (1979) 11
About zero-background quartz or silicon plates you can contact with:
"The Gem Dugout"
1652 PRINCETON DRIVE
STATE COLLEGE, PA 16803
U.S.A.
E-mail: [EMAIL PROTECTED]
Best wishes!
Vicente
Dr. Vicente José Esteve-Cano | Universitat Jaume I
[EMAIL PROTECTED] | Department of Inorgani