The one on the bottom left is from Bouse, La Paz County, AZ, I purchased it.

The one on the top right I found at the Michigamme mine tailings in the Upper Penninsula.

The one from AZ has a plate-like structure and is more colorful. The one I found in Michigan
has to be in good light to see the rainbow effect. I bought the one not knowing that I could
find it in Michigan. I'm happy with both pieces as the structure of the hematite is different.