The paint on this chain-link fence faded into a pattern of circles.

Image from i.redditmedia.com and submitted by JumpinJulius
image showing The paint on this chain-link fence faded into a pattern of circles.

An31r1n on June 12nd, 2018 at 12:33 UTC »

looks like malachite.

robertplayzz on June 12nd, 2018 at 12:44 UTC »

Damascus fence

mikerockitjones on June 12nd, 2018 at 13:27 UTC »

Is this oxidation?