Sericite/Smectite interstratified mineral, Smectite/Sericite interstratified mineral
Dioctahedral random interstratified mineral of sericite with smectite. The 1:1 regular type is rectorite.
Year of discovery: 1979 (Japan)
Locality list: 33 localities of Sericite/Smectite interstratified mineral