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from the Cambrian age
with nodules and delicate filigree-like branches
Fluorite is one of the most variable of all crystalline minerals
resulting from the oxidation of its copper and sulfide components
where early very productive copper mines supplied much of the ancient world with the material
Amethyst Fossils from the Cambrian ageOne of the most widely recognized and unmistakable minerals, Amethyst has been sought after since ancient times as a gemstone and decorative object. Amethyst is a form of Quartz which gets its beautiful purple tint from the substitution of silicone for iron due to irradiation. It is found in a wide range of shades from deep purple to pale violet and even pink, with color intensity usually deepest at the termination or tip of each crystal.
