A zeolite crystalline solid, designated IM-9, having an X ray diffraction diagram
according to FIG. 1, has a chemical composition, expressed as the anhydrous
base, in terms of moles of oxides, in accordance with the formula XO2:
mYO2: pZ2O3: qR2/nO: sF, in which R
represents one or more cation(s) with valency n, X represents one or more tetravalent
element(s) other than germanium, Y represents germanium, Z represents at least
one trivalent element and F is fluorine. The solid is useable, for example as an
adsorbent or catalyst.