Where to Find Quartz in New Jersey

New Jersey quartz concentrates around Franklin and Sterling Hill in Sussex County, where the famous zinc deposits carry secondary quartz in marble and pegmatite. The Buckwheat dump and the Sterling Hill museum collecting ground yield small quartz crystals on franklinite and willemite matrix. The Trotter shaft area produces clear and milky quartz alongside the fluorescent assemblage. Trap-rock quarries through Hudson and Bergen counties (Prospect Park, Paterson, Great Notch) carry small quartz crystals in basalt amygdules with prehnite and pectolite. Most New Jersey quartz is small and matrix-bound; specimen value lies in the rare associations.

Best counties for quartz in New Jersey

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

Somerset County7 spots
Hudson County3 spots
Monmouth County2 spots
Passaic County2 spots
Atlantic County1 spot
Bergen County1 spot
Cape May County1 spot
Hunterdon County1 spot
Morris County1 spot
Ocean County1 spot

Every quartz spot we track in New Jersey

Sorted by county. Coordinates open in Google Maps.

Spot	County	Minerals	Coordinates	Access
Atlantic CountyBrant Road	Atlantic County	Quartz	39.3807, -74.3951	Public
The PalisadesLong Path	Bergen County	Banded Agate Albite Amethyst Analcime Apatite Calcite Datolite Epidote +6 more	40.9500, -73.9202	Public
Cape MayCape May Promenade	Cape May County	Quartz Chalcedony	38.9306, -74.9112	Public
Bergen Hill by Hudson RiverNew Jersey Turnpike Newark Bay Extension	Hudson County	Banded Agate Albite Amethyst Analcime Apatite Calcite Datolite Epidote +6 more	40.7108, -74.0543	Public
General Area (Hudson/Passaic)New Street	Hudson County	Banded Agate Albite Amethyst Analcime Apatite Calcite Datolite Epidote +6 more	40.6634, -74.1099	Public
Snake HillLaurel Hill Road	Hudson County	Banded Agate Albite Amethyst Analcime Apatite Calcite Datolite Epidote +6 more	40.7581, -74.0893	Public
RiegelsvilleMount Joy Road	Hunterdon County	Jasper Quartz	40.5938, -75.1835	Public
Long Branch	Monmouth County	Quartz	40.3047, -73.9772	Public
Manasquan	Monmouth County	Quartz Fossils Petrified Wood	40.1127, -74.0318	Public
Mine Hill (bornite)Iron Mountain Road	Morris County	Bornite Calcite Chalcopyrite Chlorite Garnet Hematite Magnetite Pyrite +4 more	40.8866, -74.6050	Public
Ocean CountyEast 14th Street	Ocean County	Quartz	39.7488, -74.1059	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
3M QuarryRidge Trail	Somerset County	Quartz Agate Jasper	40.4583, -74.7135	Public
BarnardsvilleOld Quarry Road	Somerset County	Agate Geode Quartz	40.7095, -74.5740	Public
Bound BrookFire Road	Somerset County	Agate Bornite Calcite Chalcocite Copper Silver Prehnite Quartz +3 more	40.5890, -74.5678	Public
KingstonGeorgetown-Franklin Turnpike	Somerset County	Agate Prehnite Quartz	40.3971, -74.6095	Public
Rock Hill QuarryGeorgetown-Franklin Turnpike	Somerset County	Albite Chalcocite Chrysocolla Galena Goethite Malachite Prehnite Quartz +1 more	40.3969, -74.6168	Public
SomervilleChimney Rock Road	Somerset County	Agate Albite Datolite Copper Silver Quartz Serpentine	40.5847, -74.5672	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 quartz identification guide so you know what a keeper looks like in the field: Quartz in the encyclopedia.

Quartz in New Jersey FAQ

Where can you find quartz in New Jersey?+

The mapped spots concentrate in Somerset County County, Hudson County County, and Monmouth County County. Known collecting areas include Sterling Hill / Buckwheat dump (Sussex County), Franklin Marble (Sussex County), and Paterson and Prospect Park quarries (Passaic County). Every spot on this page appears on the map above with coordinates and access notes.

How many quartz spots are mapped in New Jersey?+

20 spots across 10 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 quartz 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. 20 of the 20 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.

Where else to find quartz

More minerals to hunt in New Jersey

Hunt quartz 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.