The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 2005 |
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Page 210
... Smectite . The structural units of smectite ( Figure 74 ) can be derived from the structures of pyrophyllite and talc . Unlike pyrophyllite and talc , the 2 : 1 silicate layers of smectite have a slight negative charge owing to ionic ...
... Smectite . The structural units of smectite ( Figure 74 ) can be derived from the structures of pyrophyllite and talc . Unlike pyrophyllite and talc , the 2 : 1 silicate layers of smectite have a slight negative charge owing to ionic ...
Page 211
... smectite minerals and are thus resistant to high temperatures . Because of this , after heat treatment at 500 ° -700 ° C , the presence of a characteristic X - ray diffraction peak at 14 Å is widely used to identify chlorite minerals ...
... smectite minerals and are thus resistant to high temperatures . Because of this , after heat treatment at 500 ° -700 ° C , the presence of a characteristic X - ray diffraction peak at 14 Å is widely used to identify chlorite minerals ...
Page 214
... Smectite is usually the sole dominant component in vertisols , which are clayey soils . Smectite and illite , with occasional small amounts of kaolinite , occur in mollisols , which are prairie chernozem soils . Illite , vermiculite , ...
... Smectite is usually the sole dominant component in vertisols , which are clayey soils . Smectite and illite , with occasional small amounts of kaolinite , occur in mollisols , which are prairie chernozem soils . Illite , vermiculite , ...
Common terms and phrases
albite amphiboles ancient aragonite areas atoms basalt bivalves body calcite calcium called carbonate central centre century cephalopods chemical clay minerals colour common composition contain crust crystals ctenidia cult cultural deities deposits developed dolomite Earth economic eggs electron evaporite example existence facies feldspar Figure garnet gastropods goddess gods grains Hittite human igneous rocks important industrial kaolinite king known layers limestone magma magnetic major mantle cavity marine material mental metamorphic rocks metaphysics Mexican Mexico City mica Michelangelo microscope millimetres Milton mimicry mind Mineralogy modern Molière Mongolia Mongols Moscow myth nature object occur ocean olivine organic originally oxide percent period philosophers physical plagioclase political population pressure produced properties pyroxene quartz reaction region religion religious reprinted result sandstones sedimentary rocks sediments shell silicate smectite snails society species structure Sumerian surface temperature temple tetrahedrons texture tion typically United urban volcanic