"Iris" Agate slab

“Iris” Agate slab- Paulina Agate limb cast with rare Iris effect – South Fork Crooked River. Paulina, near Prineville, Oregon. Eocene epoch… 6″ across. “Iris Agate” is a name used for a finely-banded agate that produces a...

Petrified tree fern-Osmundites chandleri

Petrified tree fern-Osmundites chandleri- Clarno Formation, Ashwood, Jefferson County, Oregon. Late Eocene epoch. 4.5″ across Ex. Irene Gregory of Beaver Hood Company. 1987… An unusual location for Osmunda, seldom seen.