Rockhounding in Essex County, Massachusetts
5 mapped rockhounding spots in Essex County. Most commonly produces amazonite, jasper, chalcedony, chalcopyrite.
Essex County rockhounding photos
Representative spot and material photos from this county, shown where verified public image records are available.
Map showing 5 rockhounding spots in Essex County, Massachusetts
Minerals reported in Essex County
Standouts in Essex County
Hand-picked spots in Essex County, chosen for unusual mineralogy or documented public access. Each card opens the full coordinates and access notes.
Top pickRockport
PublicEssex County
Rockport sits on the Cape Ann granite, a coarse pluton whose miarolitic pockets and pegmatites carry blue-green amazonite (microcline), smoky quartz, and the sodium amphibole riebeckite.
Amazonite
Top pickNahant
PermissionEssex County
Nahant's rocky shore exposes the Nahant gabbro and diabase, a dark intrusive rock cut by veins and vesicles that carry jasper, epidote, prehnite, datolite, and chalcedony, documented here since the nineteenth century.
Jasper, Epidote, Prehnite, Datolite
Top pickStage Fort Park
PublicEssex County
Gloucester sits on the same Cape Ann granite as neighboring Rockport, and its miarolitic pockets and pegmatites yield blue-green amazonite (microcline), smoky quartz, and well-formed feldspar.
Amazonite, Smoky Quartz, Microcline
Spots in Essex County
| Spot | Minerals | Coordinates | Access |
|---|---|---|---|
| Nahant | 42.4225, -70.9127 | Permission | |
| NewburyportScotland Heights Drive | 42.7851, -70.9064 | Public | |
| RockportGarfield Avenue | 42.6901, -70.6333 | Public | |
| RowleyBob Merry Lane | 42.7167, -70.9211 | Public | |
| Stage Fort ParkHough Avenue | 42.6045, -70.6720 | Public |
Neighboring counties in Massachusetts
Adjacent rockhounding counties, ranked by how close their centroids sit to Essex County. A natural extension if Essex County is already on your trip plan.
- Norfolk County~26 mi1 spotTop: Epidote, Jasper
- Plymouth County~46 mi2 spotsTop: Agate, Chalcedony, Jasper
- Worcester County~52 mi4 spotsTop: Beryl, Chalcopyrite, Muscovite
- Barnstable County~61 mi1 spotTop: Jasper
- Franklin County~91 mi10 spotsTop: Agate, Chalcopyrite, Garnet
- Hampshire County~103 mi12 spotsTop: Beryl, Rhodonite, Smoky Quartz
Across the state line from Essex County
Rockhounding counties in neighboring states within driving range. Geology rarely respects state borders — these are often the closest mapped spots you can reach without going deeper into Massachusetts.
