Unformatted text preview: 1:1 clays consist of one silica sheet and a sheet of alumina. Layers are bound very tightly and don’t let water infiltrate. 1:1 Clay Mineral (e.g., kaolinite, halloysite): 4.3 Different types of clay minerals h used in paints, paper and in pottery and pharmaceutical industries Halloysite h kaolinite family; hydrated and tubular structure h (OH) 8 Al 4 Si 4 O 10 .4H 2 O h (OH) 8 Al 4 Si 4 O 10 Kaolinite 1:1 Clay Mineral 4.3 Different types of clay minerals Different combinations of tetrahedral and octahedral sheets form different clay minerals: We can distinguish tree main groups of clay minerals 1) 1: 1 clay minerals 2) 2: 1 clay minerals 3) 2:1:1 clay minerals...
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- Spring '11
- Feldspar, Clay Minerals, Clay Mineral kaolinite