- Herkimer Diamond Jewelry from the TowerCrystals internet collection
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A Herkimer Diamond is a water-clear, double-terminated Quartz crystal. These very special, naturally faceted quartz crystals only come from Central New York, nestled in the Mohawk Valley. Bright and highly refractive with 18 natural facets, Herkimer Diamonds are often included with fossilized carbon sea-plant remains called anthraxollite. The Herkimer Diamonds pictured here are from the World Famous Ace of Diamonds mine, known for producing some of the most pristine Herkimer Diamond specimens and Treasure Mountain in Little Falls which produces the Herkimer Scepters.

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Herkimer Diamond Crystal Earrings