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These interesting rocks are commonly known as 'Moqui (or Moki) Marbles', named after the Moqui tribe of southern Utah. These are iron concretions with a sandstone center, and are left behind when the surrounding sandstone erodes. The can be found whole, broken, or still partially encased in stone.

Location:
Grand Staircase-Escalante National Monument, Utah

Catalog No.:
20080403-236

Description:
These interesting rocks are commonly known as "Moqui (or Moki) Marbles", named after the Moqui tribe of southern Utah. These are iron concretions with a sandstone center, and are left behind when the surrounding sandstone erodes. The can be found whole, broken, or still partially encased in stone.

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