Difference between Sepiolite and Meerschaum

What is the difference between Sepiolite and Meerschaum?

Sepiolite as a noun is a hydrated magnesium silicate, claylike mineral used for carving into decorative articles and smoking pipes while Meerschaum as a noun is a soft white mineral, chiefly used for smoking pipes and cigar holders

We hope you now know whether to use Sepiolite or Meerschaum in your sentence.