Where to Find Quartz Crystals in New York: 15 Mapped Sites
New York has 15 documented sites where quartz crystals have been reported, and the best-known are Lyon Mountain, Lake Harris, and Ancram area lead mines. Every site is mapped below with GPS coordinates and links to a full report of access and what's been found there. 11 of the 15 sites are on public-access land.
Last updated: — data compiled by the Rockhounding.org Research Team · methodology
Quartz Crystals Map: New York
All 15 quartz crystals sites in New York. Click a pin for the full site report.
Where Quartz Crystals Are Found in New York
Crystals line veins, pegmatite pockets, and vugs in many rock types; some famous finds come from cavities in dolostone. Vein quartz float on a hillside is the standard breadcrumb trail to a pocket zone.
The richest reported sites in New York: Lyon Mountain, Lake Harris, Ancram area lead mines, Arnold Hill Mine, Treasure Mountain Mine.
Local reporting distinguishes Quartz (7 sites), Herkimer Diamond (6 sites), Herkimer Diamonds (quartz Crystals) (2 sites), Smoky Quartz (1 site).
Of the 15 sites, 11 are public access and 4 are paid dig sites. Check each site report for current land status before you go.
All Quartz Crystals Sites in New York
- Lyon Mountain — Public Access
- Lake Harris — Public Access
- Ancram area lead mines — Public Access
- Arnold Hill Mine — Public Access
- Treasure Mountain Mine — Paid Dig Site
- Diamond Mountain Mining — Paid Dig Site
- Diamond Acres Mine (paid location) — Public Access
- Sprakers — Public Access
- Ace of Diamonds & Herkimer Diamonds Mine — Public Access
- Ace of Diamonds Mine — Paid Dig Site
- Crystal Grove Diamond Mine — Paid Dig Site
- General Area (Herkimer County 1) — Public Access
- General Area (Herkimer County 2) — Public Access
- General Area (Herkimer County 3) — Public Access
- Mill Pond — Public Access
How to Identify Quartz Crystals
Quartz crystals are six-sided prisms ending in a six-faced point: glassy, hardness 7 (scratches glass and a steel knife), breaking with conchoidal fracture instead of flat cleavage planes. Varieties are color names on the same crystal — smoky, rose, milky, citrine. Calcite mimics the look but scratches with a knife and fizzes in vinegar.
Not sure what you found? Try our identification guide →Frequently Asked Questions
Where can I find quartz crystals in New York?
New York has 15 mapped sites where quartz crystals have been reported. The best-known are Lyon Mountain, Lake Harris, and Ancram area lead mines. Each listing on the map above includes GPS coordinates, access type, and what has been found there.
How many quartz crystals sites are mapped in New York?
We have 15 documented quartz crystals sites in New York, compiled from community submissions and published locality records and reviewed by the Rockhounding.org Research Team.
Is it legal to collect quartz crystals in New York?
Casual collecting is generally allowed on BLM and National Forest land for personal, non-commercial use — the standard BLM limit is 25 lbs per day plus one specimen. National parks, monuments, and many state parks prohibit collecting, and private land always requires the owner's permission. Check the site report for each location and verify current land status before you dig.
How do I identify quartz crystal?
Quartz crystals are six-sided prisms ending in a six-faced point: glassy, hardness 7 (scratches glass and a steel knife), breaking with conchoidal fracture instead of flat cleavage planes. Varieties are color names on the same crystal — smoky, rose, milky, citrine. Calcite mimics the look but scratches with a knife and fizzes in vinegar.
What kinds of quartz crystals are found in New York?
Reports from New York distinguish Quartz (7 sites), Herkimer Diamond (6 sites), Herkimer Diamonds (quartz Crystals) (2 sites), Smoky Quartz (1 site), Rose Quartz (1 site).
What should I bring to collect quartz crystals?
The basics: a rock hammer, safety glasses, gloves, a bucket or padded bag for specimens, and a GPS app with the coordinates from this page. Add a spray bottle — wetting a stone makes color and banding far easier to judge in the field.
⚠️ Always verify current regulations, weather conditions, and access requirements before visiting any location. Information provided is based on community submissions and may not be current or accurate.
More to Find in New York
Quartz Crystals in Nearby States
Data: community submissions — reviewed and approved by the Rockhounding.org Research Team. Always verify current land status, regulations, and access before visiting any site.