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new like on twitter.com February 27, 2021 at 10:01AM
By ways4.eu
on Sat Feb 27 2021
Iron-pyrite FeS₂ represents the prototype compound of the crystallographic pyrite structure. The structure is simple cubic and was among the first crystal structures solved by X-ray diffraction. This beautiful 1.8 kg specimen comes from Spain [source: https://t.co/JxnXj5ScSx] pic.twitter.com/L2RoNedvY9
— Massimo (@Rainmaker1973) February 27, 2021