Oregon Black Agate w Plume and Marcasite Cabbing Rough Flatrate Lapidary Stone Piranha Agate its one you rarely see

its one you rarely see rough or slabs of anymore

Howardite is Opalised Silicate

though the general leading theory is coprolites

but for those hungry for Kaleidoscope

we love to grind and polish the ends and to keep them as display pieces

Oregon Black Agate w Plume and Marcasite Cabbing Rough Flatrate Lapidary Stone Piranha Agate its one you rarely seeThis is a Black Oregon Agate from near Prineville, Oregon. This material is from an old estate sale. So far as I know, it was never mined or marketed. It does have some really nice looking plume and marcasite in some of it, but it is hard to photograph due to the darker color scheme and the poor lighting here. I have not worked any, so I'm unsure of how it does. It appears solid, but some voids are present. These could however be incorporated for a