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The spectacular display of colors these specimens display can be formed by two different geological processes: the oxidation of pyrite causing ultra-thin layers of iron oxide to form on the surface
red and many other colors corresponding to their physical makeup and conditions when the mineral was formed
or the formation of equally thin layers of secondary minerals due to hydrothermal or other alteration
It is found in a wide range of shades from deep purple to pale violet and even pink
Quartz w/ Pyrite Amber The spectacular display of colors
US$ 18.71
US$ 18.00
US$ 28.00
US$ 61.41
