Ben, I read your description and it is clear. I want the flexibility for myself. If the environment and tool it rigid, I know that I won’t be able to build the things I want. That includes (G) gathering and organizing things, (E) exploration and mapping new kinds of things (C) comparison and classification (S)
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https://www.youtube.com/watch?v=mvKrwSNy69Q The rovers have x-ray spectrometers to determine elemental compositions of Martian rocks and materials. https://mars.nasa.gov/mer/mission/instruments/apxs/ https://en.wikipedia.org/wiki/Alpha_particle_X-ray_spectrometer Ralf Gellert is the principle investigator for the Curiosity APXS. I suppose you could ask him if they checked. They probably are doing random samples of everything, and might be able to estimate elemental abundances, including gold, in
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