I’ve been experimenting with making pigments from locally sourced minerals (and plant matter) for "extreme" place-based nature journaling and art. I call it "feral watercolor."
Because the pigments come from the location being represented in the art, the colors can be strikingly true and the sense of place profound.
The pigment (and resin binder) below is from the Sierra El Rosario in Northern Mexico’s La Reserva Pinacate del Gran Desierto.
I collected magnetite and ground it into powder, then for a binder I added resin from a plant growing in a canyon in the Sierra — Bursera microphylla — and Sonoran Desert honey as a humectant. I also experimented with adding a little oxgall, which seemed to help improve dispersal across the paper.
The result is a paint that perfectly mimics the stark, nearly black mountains that rise out of the sand dunes (see the painting, top) and that has a faint pink undertone from the iron-oxide sands mixed in with the magnetite. These are aeolian sands, literally wind-borne and deposited over millions of years from central Arizona’s red-rock country.
I have mineral soils from all over the world, and have quite a few projects planned—in addition to a workshop in the near future—email me if you are interested!