Formation and Composition of Amethyst gemstone

Amethyst is a purple variety of quartz formed inside geodes, which are hollow rocks with crystal-filled cavities. It gets its purple color from iron impurities within the crystal lattice. Its chemical formula is SiO2 with traces of Fe and other impurities. It ranks a 7 on Mohs hardness scale, making it durable. Amethyst is widely used for jewelry and is also believed to have healing properties, promoting emotional stability and clarity.

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