Mineralienatlas - Fossilienatlas
16 Silicates Containing Aluminum and other Metals |
|||||
16.20 Aluminosilicates of Fe, Mg and alkalis |
|||||
Crossit | Na2(Mg,Fe2+)3(Al,Fe3+)2Si8O22(OH)2 | monoklin | C2/m | 2/m | 16.20.04 |
Ferro-Eckermannit | Na3(Fe2+,Mg)4AlSi8O22(OH)2 | monoklin | C2/m | 2/m | 16.20.05 |
Glaukonit | (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2 | monoklin | C2/m | 2/m | 16.20.10 |