DISAPPEARANCE AND REAPPEARANCE OF THE (001) REFLECTIONS OF MONTMORILLONITE
蒙脱石相变中(00l)衍射线的消失和再现

Montmorillonite samples treated at different temperatures had been studied by XRD. The (001) reflections of some samples disappeared, and reappeared under some conditions. The crystallographic significance and the possible phase transformation had been discussed.