Not sure about one vendor's display practices at the Victoria Gem Show https://victoriagemshow.com/ (#MinCup25 fans can play guess the two minerals) #geology

Native copper in a sedimentary conglomerate. It is proposed that detrital hematite reacts with copper sulfate solutions to reduce the copper and the fluids carry away the iron and sulfur.

From Calumet and Hekla Mine, Michigan. University of Waterloo Earth Sciences Museum Collection.

#OreCup25 #MinCup25 #Copper #Michigan #UpperPeninsula #UWaterloo

The Flemish masters painted on #copper as it provided a smooth, luminous surface that allowed fine detail and durability of the exquisite works, like this self portrait of a laughing Rembrandt. #MinCup25 βš’οΈ sci-fi πŸ§ͺ πŸ––πŸΌ scifi Geosciences #WomenInSTEM geology🍎 πŸ”­πŸͺ

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Octahedral crystals, polysynthetic twinning striations, super conductivity, and iridescent sheen? Yes, please. #carrollite #MinCup25 βš’οΈ sci-fi πŸ§ͺ πŸ––πŸΌ scifi Geosciences #WomenInSTEM geology πŸ”­πŸͺ

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