Crystal Grove Diamond Mine
Approximate — check official site before visiting
Hunt for the famous Herkimer diamonds — beautiful double-terminated quartz crystals first discovered in New York. Equipment rental available.
🌐 Visit Official Site →🪨 What You Can Find Here
Quartz Crystals
Clear, smoky, and rose quartz crystals are among the most common and rewarding rockhounding finds. Arkansas produces world-class quartz.
Also found at:
📍 Nearby Locations in New York
Herkimer Diamond Mines
Middleville, New York · Fee Dig
The original Herkimer diamond mining experience. Multiple sites in the area allow digging for these perfectly clear double-terminated quartz crystals.
Benson Mines
St. Lawrence County, New York · Fee Dig
Historic mining area in the Adirondacks producing garnet crystals and iron minerals. Garnet mining was once a major industry here.
Gore Mountain
North River, New York · Fee Dig
World-famous for giant almandine garnet crystals, some exceeding 2 feet in diameter. Home of the world's largest garnet deposit.
Rose Hill Mine
Ogdensburg, New York · Fee Dig
Famous mineral locality in the Balmat-Edwards district known for fluorite, sphalerite, and calcite specimens.
LCT Lithium Mine
Benson Mines Area, New York · Fee Dig
Pegmatite deposit producing beryl, garnet, and quartz crystals in the Adirondack region.
⛏️ Recommended Gear
Make the most of your visit to Crystal Grove Diamond Mine with the right equipment.
Rock Hammer
The most essential rockhounding tool. Choose a hammer with both a flat striking face and a pointed pick end.
Typical: $25-45
Safety Glasses
Mandatory protective gear. Rock chips fly unpredictably when hammering.
Typical: $10-20
Chisel Set
Cold chisels in 3-4 sizes for precise extraction from matrix rock.
Typical: $15-30
Geologist's Pick
A heavier crack hammer for splitting hard rock. Essential for hard rock mining areas.
Typical: $35-60
Sifting Screen
Stackable mesh screens for sifting gravel and dirt. Essential for gem and fossil hunting.
Typical: $20-40
UV Flashlight
Long-wave UV light for finding fluorescent minerals and Yooperlites.
Typical: $15-35