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Calcite Black Herkimer Crystal
 Shop More Raw Mineral Specimens Explore more Herkimer clusters on calcite and other natural treasures at: 👉 https://herkimerdiamondrings.com/product-category/other/raw-mineral-specimens/ About Treasure Mountain Diamond Mine We proudly own and operate the Treasure Mountain Diamond Mine in Little Falls, New York — home to some of the world’s most extraordinary Herkimer diamonds. We also mine 160 acres in Fonda, producing spectacular skeletal crystals and druzy specimens. Green Gem mines responsibly and sustainably. Every Herkimer diamond we offer is mined in the United States and is 100% conflict-free and eco-friendly. About Herkimer Diamonds Herkimer Diamonds are exceptionally clear, double-terminated quartz crystals found only in Herkimer County, New York. Their diamond-like brilliance and natural faceting make them a beautiful and affordable alternative to traditional diamonds. These crystals formed over 500 million years ago in Cambrian-age Little Falls Dolostone, a limestone host rock that created natural pockets where Herkimer diamonds slowly grew. Each crystal’s flawless geometry results from atomic-level electrostatic forces, forming nature’s perfect prisms of light. Healing Benefits of Herkimer Diamonds Connect the physical and spiritual planes Promote high-vibration energy and spiritual growth Strengthen meditation and astral experiences Boost psychic awareness and dream clarity Why Choose Conflict-Free Herkimer Diamonds Our Herkimer diamonds are ethically mined in the U.S., never lab-grown or imported from conflict zones. They are pure, natural quartz crystals — clear, durable, and full of positive energy — meant to last a lifetime](https://herkimerdiamondrings.com/wp-content/uploads/2025/10/IMG_8107-3-1-450x450.jpg)
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PO Box 95
Spofford, New Hampshire 03462
603.744.7939