Limit tests performed on a clay indicate a liquid limit of 67 percent and a plastic limit of 32 percent. From a hydrometer analysis to determine particle sizes, it is found that 40 percent of the...

Limit tests performed on a clay indicate a liquid limit of 67 percent and a plastic limit of 32 percent. From a hydrometer analysis to determine particle sizes, it is found that 40 percent of the sample consists of particles smaller than 0.002 mm. From this information, indicate the activity classification for this clay and the probable type of clay mineral.