Jan 22, 2013 — ... image.jpg - 105kB ... A copper sulfate crystal that grew in one of my beakers. ... I wonder how many incredible Ru crystals would form if you melted ruthenium ... I can't imagine what it was like for Rontgen to expose the first x-ray ...
X copy from my MEGA, 105 (1) @iMGSRC.RU
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