Y-index value for illitic type clay is
A. 0 - 5
B. 5 - 25
C. > 25
D. None of the above
Answer: Option B
Solution (By Examveda Team)
An illite is a group of closely related non-expanding clay minerals. It is a secondary mineral precipitate, and an example of phyllosilicate, or layered alumino-silicate. Its structure is a 2 : 1 sandwich of silica tetrahedron-alumina octahedron-silica tetrahedron.The y-index value for illitic clay is between 5 - 25.
This Question Belongs to Agriculture >> Soil Science
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