Hewitt Gem Quarry: Beryl & Aquamarine Rockhounding in Lower Connecticut River Valley Planning Region, Connecticut
- Minerals reported
- 10
- Elevation
- 350 ft
Hewitt Gem Quarry is a mapped rockhounding spot in Lower Connecticut River Valley Planning Region, Connecticut. Reported finds include beryl, aquamarine, morganite, schorl, topaz, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.
Plan your visit
Permission required before collecting
- State
- Connecticut
- Nearest road
- Turkey Hill Road
- Postcode
- 06438
- Coordinates
- 41.45272, -72.51060
Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.
Land & collecting status
Permission required before collecting
Requires landowner or agency permission before any collecting. Do not enter without explicit authorization.
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.
Geology at Hewitt Gem Quarry
This spot sits on Collins Hill Formation, mapped as schist that formed roughly 470 to 445 million years ago. Metamorphic belts like this often host pegmatite dikes, the coarse-crystal bodies that typically carry beryl, tourmaline, and sheet mica.
- Mapped unit
- Collins Hill Formation
- Age
- 470–445 Ma (Middle Ordovician to Late Ordovician)
- Rock types
- schist
- Elevation
- 350 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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The app shows live weather, recent rain, and a daily rockhounding score for Hewitt Gem Quarry.
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.
- Connecticut Geological Survey
- CT DEEP state land rules
- Community submissions reviewed against published agency rules
Found at Hewitt Gem Quarry
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 Hewitt Gem Quarry.
- CCC PegmatiteLower Connecticut River Valley Planning Region, Connecticut · 1 mi awayAlbite, Beryl, Columbite
- CCC QuarryLower Connecticut River Valley Planning Region, Connecticut · 1 mi awayBeryl, Aquamarine, Microcline
- Gillette QuarryLower Connecticut River Valley Planning Region, Connecticut · 3 mi awayAmazonite, Aquamarine, Beryl
- Slocum ProspectLower Connecticut River Valley Planning Region, Connecticut · 6 mi awayBeryl, Rose Quartz
- White Rocks QuarryLower Connecticut River Valley Planning Region, Connecticut · 8 mi awayBeryl, Tourmaline
- Riverside QuarryLower Connecticut River Valley Planning Region, Connecticut · 9 mi awayAquamarine, Beryl
- Clark Hill QuarriesLower Connecticut River Valley Planning Region, Connecticut · 10 mi awayBeryl, Aquamarine, Garnet
- Collins HillLower Connecticut River Valley Planning Region, Connecticut · 10 mi awayApatite, Aquamarine, Beryl
Across the state line from Hewitt Gem Quarry
Hewitt Gem Quarry is close enough to the Connecticut border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.
- WesterlySouth County, Rhode Island · 40 mi awayBeryl
- Moosup RiverProvidence County, Rhode Island · 44 mi awayEpidote, Hornblende, Orthoclase
- Lane QuarryHampden County, Massachusetts · 47 mi awayAmethyst, Datolite, Prehnite
- West GreenwichKent County, Rhode Island · 48 mi awayAmazonite
- Long Island South Shore BeachesSuffolk County, New York · 53 mi awayAlmandine Garnet, Quartz, Jasper
- BlandfordHampden County, Massachusetts · 54 mi awayBeryl, Feldspar
Hewitt Gem Quarry FAQ
Where is Hewitt Gem Quarry?+
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More rockhounding in Connecticut
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