L1 /
15
CH3041
SILICATES IV
O / Si ratio = 11/4: 1
oxygens of SiO44-
2 shared; every 2nd bridges
2 shared; every 2nd bridges
eg. Amphibole
(tremolite)
Ca2Mg5Si8O22(OH)2
Ca2Mg5Si8O22(OH)2
O / Si ratio = 2.5: 1
oxygens
of SiO44-
2 shared, 1 bridges
2 shared, 1 bridges
eg. Mica (muscovite)
KAl2[AlSi3O10(OH)2]
KAl2[AlSi3O10(OH)2]
Sheet (Layer)
Silicates [Si4O10]4-
Double Chain Silicates [Si4O11]6-
