These two rocks are a Mano and a Matate. The Mano is the smaller rock. The Matate is the larger rock. The Mano is about 6 inches long and 4 inches wide. the Matate is about 10 inches long and 8 inches wide. These tools were used by Native American People to grind corn. First you put about 10 corn kernels on the Matate. Next you use the Mano to squash the kernels so they break open. Then you use the Mano to grind the corn pieces into a kind of flour. The flour contains pieces of rock, so when the Native Peoples ate it it ground down their teeth! It also takes a lot of corn kernels to make enough flour to make bread because as you can see in the photo, lots of the flour goes into the pores of the rock! |
Tropical storm headed into Arizona Tues...lots of rain headed ur way
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