pit. They broke down larger stones into pebbles using a metal mallet so that they could fit more into each sack. Once the sacks were full, they carried them to nearby pools of water to sift the contents through a kaningio (metal sieve). The sieved heterogenite stones were then loaded back into the sacks. It took several such cycles each day to obtain enough heterogenite pebbles to fill one large raffia sack.
