Product Notes: The table below represents the typical mineral breakdown of our bentonite clay powder.SiO266.5%Al2O314.3%MgO3.2%Fe2O30.8%CaO2.2%Na2O3.3%K2O0.1%TiO20.2%This is mined in Texas and is considered a non-swelling , calcium type of bentonite.Origin: United StatesKosher: KSA CertifiedCommon Name: Bentonite Clay PowderBar Code: 0-89836-02194-6