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An alexandrite can scratch tin. talc, Asbestos, Biotite, Galena/Lead, Graphite, Gypsum, Halite/Salt, Lepidolite, Muscovite, Sulfur, Zinc, Calcite, Chalcopyrite, Copper, Gold, Silver, Nickel, Platinum, Sphalerite, Titanium, Turquoise , Hematite, Magnetite, Opal, Pyrite, Uraninite, Amethyst, Aquamarine, Garnet, Olivine/Peridot, and Quartz.

X- Aim D.

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14y ago

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