Listwanite

This listwanite is a surficial deposit on a bit of serpentinized harzburgite. I note that I've seen sites celebrating listwanite that looks like this as a semi-precious gem. But it's only ~2-3mm thick. The color, here lovely turquoise, is elsewhere red and yellow. As an alteration product of serpentine, itself an alteration of peridotite, it's like -- alteration squared. Anyway, this piece is from near Perivoli, and I imagine it might even be from the same deposit that Jan Brunn mentions as a potential gold ore.

The HUGE rock with really lovely light turquoise listwanite on the road to Vasilitsa is still waiting for several strong students to help me collect it!