Where to Find Datolite
24 mapped datolite spots across 8 regions in 2 countries. Pick a region for its local guide, or browse every spot below. Datolite is reported at multiple rockhounding spots across the United States. The map below shows where collectors most often find it on legal public ground.
Every mapped datolite spot
Best spotNahantEssex County, MassachusettsPermission required · Jasper, Epidote, Prehnite +2
Best spotLoudon CountyLoudoun County, VirginiaPublic access · Calcite, Datolite, Epidote +6- Best spotKeweenaw PointKeweenaw County, MichiganPublic access · Keweenaw Agate, Thomsonite, Datolite +2
Pompton LakesPassaic County, New JerseyPublic access · Banded Agate, Amethyst, Barite +12- Prospect Park QuarryPassaic County, New JerseyPublic access · Banded Agate, Amethyst, Barite +12
Bergen Hill by Hudson RiverHudson County, New JerseyPermission required · Banded Agate, Albite, Amethyst +11- General Area (Hudson/Passaic)Hudson County, New JerseyPublic access · Banded Agate, Albite, Amethyst +11
- Snake HillHudson County, New JerseyPublic access · Banded Agate, Albite, Amethyst +11
- The PalisadesBergen County, New JerseyPublic access · Banded Agate, Albite, Amethyst +11
- PerryWashington County, MainePublic access · Analcime, Calcite, Datolite +8
- East Granby QuarryCapitol Planning Region, ConnecticutPublic access · Datolite, Aragonite, Calcite +6
- Union CountySomerset County, New JerseyPublic access · Agate, Apophyllite, Albite +6
- Bergen CountyBergen County, New JerseyPublic access · Agate, Amethyst, Carnelian +5
- High Rock BayKeweenaw County, MichiganPublic access · Prehnite, Calcite, Copper +4
- Meldon Aplite QuarryWest Devon, DevonPermission required · Axinite, Datolite, Tourmaline +4
- Mt. GilboaHunterdon County, New JerseyPublic access · Axinite, Prehnite, Epidote +4
- SomervilleSomerset County, New JerseyPublic access · Agate, Albite, Datolite +4
- Fort Point AreaCaliforniaPermission required · Diabase, Datolite, Basalt +2
- HaledonPassaic County, New JerseyPublic access · Agate, Datolite, Pyrolusite +1
- Lane QuarryHampden County, MassachusettsPublic access · Amethyst, Datolite, Prehnite
- Lane Trap Rock QuarryHampshire County, MassachusettsPublic access · Amethyst, Prehnite, Datolite
- Seneca No. 1 ShaftKeweenaw County, MichiganPermission required · Copper, Datolite, Prehnite
- Caledonia MineOntonagon County, MichiganFee dig · Native Copper, Datolite
- Lambertville QuarryHunterdon County, New JerseyPublic access · Axinite, Datolite
Top regions for datolite
United States
23 spots · 7 regionsUnited Kingdom
1 spots · 1 regionsDatolite rockhounding FAQ
Where is the best place to find datolite?+
New Jersey, Michigan, Massachusetts have the highest concentrations of datolite in this list. Quality and access vary by area, so open the linked region pages for a detailed view.
How many datolite rockhounding spots does RockHoundR track?+
24 mapped spots across 8 regions in 2 countries. The app keeps these on a map alongside your private finds.
Can I legally collect datolite on public land?+
In the U.S., casual hand collecting of common rocks and minerals like datolite is allowed on most BLM and U.S. Forest Service land, with daily and annual limits set by the local field office. National parks, most state parks, and tribal land are off-limits. Rules differ by country and region, so always check with the managing agency before a trip.
How do I identify datolite in the field?+
Field identification of datolite comes down to color, hardness, fracture, and luster. The RockHoundR app links to geology details for each spot to help narrow down what you might be picking up.
Hunt datolite on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
