![Quartz (rock Crystal) Mineral, Crystal Structure. Onyx, Amethyst and Agate Gemstone are All Varieties of Quartz Stock Illustration - Illustration of unit, onyx: 187033756 Quartz (rock Crystal) Mineral, Crystal Structure. Onyx, Amethyst and Agate Gemstone are All Varieties of Quartz Stock Illustration - Illustration of unit, onyx: 187033756](https://thumbs.dreamstime.com/z/quartz-rock-crystal-mineral-structure-onyx-amethyst-agate-gemstone-all-varieties-atoms-shown-as-color-coded-spheres-si-187033756.jpg)
Quartz (rock Crystal) Mineral, Crystal Structure. Onyx, Amethyst and Agate Gemstone are All Varieties of Quartz Stock Illustration - Illustration of unit, onyx: 187033756
In minerals like quartz, where there are multiple 'varieties' (rose quartz, amethyst, etc.), are the properties (cleavage, hardness, etc.) the same? - Quora
![Quartz (rock crystal) mineral, crystal structure. Onyx, amethyst and agate gemstone are all varieties of quartz. Atoms shown as color-coded spheres (S Stock Photo - Alamy Quartz (rock crystal) mineral, crystal structure. Onyx, amethyst and agate gemstone are all varieties of quartz. Atoms shown as color-coded spheres (S Stock Photo - Alamy](https://c8.alamy.com/comp/J3PB0E/quartz-rock-crystal-mineral-crystal-structure-onyx-amethyst-and-agate-J3PB0E.jpg)
Quartz (rock crystal) mineral, crystal structure. Onyx, amethyst and agate gemstone are all varieties of quartz. Atoms shown as color-coded spheres (S Stock Photo - Alamy
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