Chlorite 
A 2:1 and 2:1:1 clay mineral. It is typically found in argillaceous sedimentary rocks, typically sandy or chalky (calcium carbonate). The clay mineral is a secondary component of these rocks.
Chlorite
A 2:1 and 2:1:1 clay mineral. It is typically found in argillaceous sedimentary rocks, typically sandy or chalky (calcium carbonate). The clay mineral is a secondary component of these rocks.