November 15, 2019Day 82 Scroll down to content Day 82 of the 365 to 40 project. Despite looking like a giant splotch of mold I’m reasonably certain it’s some reasonably advanced copper corrosion in a little sample ore rock I have. Share this:Click to share on Reddit (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Pinterest (Opens in new window) Published by dawnstarau View all posts by dawnstarau