Intergrowths of 85-90% polymorph A and 15-10% polymorph B
Gao, Z.R., Li, J., Lin, C., Mayoral, A., Sun, J., and Camblor, M.A.
HPM-14: A New Germanosilicate Zeolite with Interconnected Extra-Large Pores Plus Odd-Membered and Small Pores Angew. Chem. Int. Ed.,60,3438–3442 (2021)