Banded Iron Display Mineral

453 grams or 16 ounces of  Magnetite, Hematite & Jasper

Approximately 4 3/4 x 2 x 1 inches

Origin: Wyoming

Banded Iron is a from of sedimentary rock ranging from 1.8 to 2.5 billion years old.

A typical Banded Iron formations consists of repeated, thin layers of iron oxides -

either Magnetite (Fe3O4) or Hematite (Fe2O3) -

alternating with bands of iron-poor shale and chert.

This piece is "naturally polished" by rain/wind/water erosion