. . 





■ ..'. .' ."" 



Ofk :i •*MS&5:5SS, : ' 



Figure 9-12. Typical clay patterns. 1— Wyoming bentonite (montmorillonite) . 2 — Beidel- 

 lite. 3— Hectorite. 4 — Nontronite. 5— Glauconite. 6 — Kaolinite. 7— Dickite. 8— Illite. 



173 



