cyclosilicate Flashcards
1
Q
cyclosilicates
A
3 member ring
6 member ring
others
2
Q
3 member ring:
Benitoite
A
hexagonal, BaTi(Si3O9)
3
Q
6 member ring
A
- beryl
- bazzite
- sugilite
4
Q
beryl
A
hexagonal, Be3Al2 (Si6O18)
5
Q
bazzite
A
hexagonal, Be3Sc2 (Si6O18)
6
Q
sugilite
A
hexagonal, KNa2(Fe,Mn,Al)2 Li3 Si12O30
7
Q
cordierite
A
orthorhombic, (Mg,Fe)2 Al4Si5O18 * nH2O
8
Q
axinite
A
triclinic, (Ca,Fe,Mn)3 Al2BSi4O16H
9
Q
tourmaline
A
hexagonal, —–
10
Q
buergerite
A
hexagonal, NaFe3Al6(Si6O18)(Bo3)3(OH)3(OH)
11
Q
schorl
A
hexagonal, NaFe3Al6(Si6O18)(Bo3)3(OH)3(OH)