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Yttrium Fluorite (Yttrofluorite) Rough from Mexico - $8.00/lb
Yttrium (Yttrofluorite) Rough from Sonora Mexico is cut from a material related to Fluorite. In fact, trivalent yttrium takes the place of calcium found in the colorful and more common Calcium Fluorite. This material has a Mohs hardness of 4 to 5. This rough has a light purple color and make fantastic cabochons.