Franklin (minerals): Apatite & Azurite Rockhounding in Sussex County, New Jersey
- Minerals reported
- 6
- Elevation
- 630 ft
- Best months
- March to November
Franklin (minerals) is a mapped rockhounding spot in Sussex County, New Jersey. Reported finds include apatite, azurite, cerussite, corundum, franklinite, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.
Plan your visit
Generally open to casual rockhounding
- County
- Sussex County
- State
- New Jersey
- Nearest road
- Cork Hill Road
- Postcode
- 07416
- Coordinates
- 41.10078, -74.59311
Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.
Land & collecting status
Generally open to casual rockhounding
Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.
Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.
Best time to visit Franklin (minerals)
Comfortable months (45 to 90°F highs)
Best months: March to November. Typical highs run 83°F in midsummer and 35°F in midwinter, with winter lows near 17°F.
Climate normals: NOAA 1991-2020 monthlies, SUSSEX AP station (7 mi away), adjusted for elevation.
Geology at Franklin (minerals)
This spot sits on Franklin Marble, mapped as marble that formed roughly 1600 to 1000 million years ago. Metamorphic rock like this weathers into resistant float, and minerals that survive transport typically concentrate in nearby drainages.
- Mapped unit
- Franklin Marble
- Age
- 1600–1000 Ma (Mesoproterozoic)
- Rock types
- marble
- Elevation
- 630 ft
Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.
Today's weather
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Get the appSources & verification
Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.
- New Jersey Geological and Water Survey
- Monmouth County Park System, fossil collecting rules
- Sterling Hill Mining Museum
- Community submissions reviewed against published agency rules
Found at Franklin (minerals)
Each name opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.
Nearby rockhounding spots
Other rockhounding spots within driving distance of Franklin (minerals).
- Franklin FurnaceSussex County, New Jersey · 1 mi awayFluorite, Franklinite, Magnetite
- FranklinSussex County, New Jersey · 1 mi awayEpidote, Pyrite, Fluorite
- Franklin-Ogdensburg-Sterling Hill mining districtSussex County, New Jersey · 1 mi awayWillemite, Zincite, Calcite
- SpartaSussex County, New Jersey · 5 mi awayChondrodite, Corundum, Ruby
- Sulphur Hill MineSussex County, New Jersey · 10 mi awayWillemite
- Nolands PointMorris County, New Jersey · 11 mi awayGarnet
- Mount HopeMorris County, New Jersey · 12 mi awayApatite, Pyrite, Pyrrhotite
- Morris CountyMorris County, New Jersey · 12 mi awayPrehnite
Across the state line from Franklin (minerals)
Franklin (minerals) is close enough to the New Jersey border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.
- AmityOrange County, New York · 14 mi awayBlue Corundum, White Corundum, Fluorite
- Mines (Orange County)Orange County, New York · 16 mi awayArsenopyrite, Leucopyrite, Scorodite
- CraigsvilleOrange County, New York · 27 mi awayBloodstone
- StroudsbrugMonroe County, Pennsylvania · 29 mi awayAgatized Coral, Quartz
- Area Near West PointOrange County, New York · 36 mi awayChrysotile Asbestos
- SummitvilleSullivan County, New York · 37 mi awaySphalerite
Franklin (minerals) FAQ
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More rockhounding in New Jersey
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