Brazilian black clay vs bentonite clay

[kaygrrl]

Is there a difference between Brazilian black clay and bentonite clay? Also, where can I find Brazilian black clay? Do you think a combination of Brazilian black clay and a small amount of activated charcoal would produce a truly black soap with white suds?

 

[violets2217]

Looks like Nurture Soap Sells it... Black Brazilian Clay
I've never heard of it! By the description it seems like it is a kaolin clay with Magnesium Aluminum Silicate, montmorillonite, mica The Bentonite clay I have is a creamy greyish color.