Leaching and precipitationOld abandoned mines are full of ongoing chemistry, usually nasty and bad f
Leaching and precipitationOld abandoned mines are full of ongoing chemistry, usually nasty and bad for the environment (see http://bit.ly/2n5qxMx), but every now and again true beauty results. The reddish deposit on this old timber that once shored up a gallery is native copper that was dissolved and concentrated by percolating groundwater, and then re precipitated on and in the wood, creating quite an unusual effect. The piece came from Arizona and measures 25cm long by 6 thick. LozImage credit: LGF Foundationhttps://lgfmuseum.org/ -- source link
#mineral#mineralogy#copper#geology#groundwater#chemistry#mineralmonday