Precious Gemstones in Franklin North Carolina. Museum, Rock Shop, Mines, Record Rubies and Beryl.

See precious gemstones in Franklin North Carolina. Visit the museum, rock shops, mines and see record size Rubies and Green Beryl. That 2.5 pound ruby is just a worthless chunk of the mineral corundum. Ruby will be in six sided crystal form and clear. The clearer the crystal the more valuable. Corundum is an aluminum oxide mineral that can be found in crystalline and massive forms. Pure corundum is colorless, but small amounts of impurities can give it a variety of colors. For example, chromium gives rubies their red color, while other trace minerals can create sapphires in a range of colors. Corundum that isn't used as a gemstone is simply called corundum and can be used in abrasives, sandpaper, and power tools
This is the best city in the Eastern United States for rockhounds and fining rare gems. Where else can you find emeralds, rubies and huge sapphires in one day? We won't talk about the Treasure State, Montana, just yet. Helena and Yogo Gulch have the best sapphires, it's not even close.
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