Current:
Target:
Beryl!
O
Si
3+
Al
2+
Be
O
Si
O
O
O
Current:
Si
O
Target:
Si
O
4
O
Si
O
O
O
Current:
Si
O
2
Target:
Si
O
4
O
Si
O
O
O
Current:
Si
O
3
Target:
Si
O
4
O
Si
O
O
O
tetrahedron
4-
Si
O
4
(silica tetrahedron)
tetrahedron
tetrahedron
tetrahedron
tetrahedron
tetrahedron
tetrahedron
Al
Al
Be
Be
Be
