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Amethyst is a purple variety of quartz often used as an ornamental stone. It ranges from deep purple to pale lilac in color, and is widely distributed throughout the world, often found with pyrite or other minerals. Amethyst has a Mohs hardness of 7.5–8 on the mineral scale (with 1 being softest and 10 being hardest). It occurs in primary igneous rocks, as well as secondary deposits and hydrothermal veins. The name comes from Ancient Greek ἀ
