Where to Find Chalcedony in New Jersey

New Jersey has 7 mapped collecting spots that report chalcedony, spread across 4 counties. The largest share sits in Cape May County with 2 spots. 7 of the spots are on land mapped as publicly accessible.

Standout chalcedony spots in New Jersey

Hand-picked from the full list below, with the reason each one earns a trip.

Cape May
Cape May County
Sunset Beach at the tip of Cape May is the classic place to hunt Cape May diamonds, rounded pure quartz pebbles that polish up like gemstones.
Higbee Beach Wildlife Management Area
Cape May County
Higbee Beach is a free, no-tag stretch of Delaware Bay shoreline where Cape May diamonds, wave-polished clear quartz pebbles, concentrate along the strand line.

Best counties for chalcedony in New Jersey

Ranked by the number of mapped chalcedony spots. County links open the full rockhounding page for that county.

Every chalcedony spot we track in New Jersey

Sorted by county. Coordinates open in Google Maps.

Spot	County	Minerals	Coordinates	Access
Bergen CountySoldier Hill Road	Bergen County	Agate Amethyst Carnelian Chalcedony Datolite Natrolite Common Opal Fire Opal	40.9654, -74.0542	Public
Cape MayCape May Promenade	Cape May County	Quartz Chalcedony	38.9306, -74.9112	Public
Higbee Beach Wildlife Management AreaNew England Road	Cape May County	Quartz Chalcedony	38.9430, -74.9670	Public
Pompton LakesI 287	Passaic County	Banded Agate Amethyst Barite Calcite Chalcedony Cuprite Datolite Dolomite +7 more	41.0054, -74.3071	Public
Prospect Park QuarryNorth 16th Street	Passaic County	Banded Agate Amethyst Barite Calcite Chalcedony Cuprite Datolite Dolomite +7 more	40.9404, -74.1748	Public
Union CountyValley Road	Somerset County	Agate Apophyllite Albite Bornite Chalcedony Datolite Galena Hematite +1 more	40.6602, -74.4091	Public
Warren TownshipRed Hill Road	Somerset County	Banded Agate Moss Agate Chalcedony Jasper Petrified Wood Quartz Amethyst Citrine +1 more	40.6298, -74.5312	Public

Before you go

Read the chalcedony identification guide so you know what a keeper looks like in the field: Chalcedony in the encyclopedia.

Chalcedony in New Jersey FAQ

Where can you find chalcedony in New Jersey?+

The mapped spots concentrate in Cape May County, Passaic County, and Somerset County. Every spot on this page appears on the map above with coordinates and access notes.

How many chalcedony spots are mapped in New Jersey?+

7 spots across 4 counties. The RockHoundR app keeps the same spots on an offline map with public land overlays, geology layers, and your saved finds.

Is it legal to collect chalcedony in New Jersey?+

Hand collecting of common rocks and minerals in small amounts for personal use is generally allowed on BLM and U.S. Forest Service land, with limits set by the local field office. National parks, most state parks, and tribal land are closed to collecting. 7 of the 7 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.

Where else to find chalcedony

More minerals to hunt in New Jersey

Hunt chalcedony in New Jersey with the map in your pocket

RockHoundR puts these spots on an offline map with BLM and Forest Service overlays, geology layers, and a log for your finds.