The present invention relates to a new crystalline polymorph B-52 form of atorvastatin hemicalcium salt [A[(3R,5R)-7-[3-phenyl-4-[(phenyl carbamoyl]-2-(4-fluorophenyl)-5-(1-methylethyl)-1H-pyrrole-1-yl]-3,5-dihydroxy-heptanoic acid calcium salt (2:1)], medicinal preparations containing the new polymorph form, process for the preparation thereof and the use of the new polymorph form for the preparation of medicinal products.