If the packaging bursts care should be taken not to inhale the powder. The contents are rock that has been finely ground to about the particle size as baby powders. Baby powders are probably more hazardous, they are also made out of finely ground rock, but they have had chemicals added to make them smell nice. AMIS CRM’s have had nothing added. Health and safety precautions for the handling of these powders are more fully described in the Certificate for these product published on the AMIS website www.amis.co.za.