Where to Find Aquamarine in Connecticut

Connecticut has 9 mapped collecting spots that report aquamarine, spread across 3 counties. The largest share sits in Lower Connecticut River Valley Planning Region with 7 spots. 9 of the spots are on land mapped as publicly accessible.

Standout aquamarine spots in Connecticut

Hand-picked from the full list below, with the reason each one earns a trip.

Case Quarries
Lower Connecticut River Valley Planning Region
The Case Quarries are one of only three sites in Connecticut where mineral collecting on state land is legally sanctioned, set in the pegmatites of Meshomasic State Forest.
CCC Quarry
Lower Connecticut River Valley Planning Region
The CCC Quarry, a 19th-century feldspar working near the old Civilian Conservation Corps camp in Cockaponset State Forest, is the third state-sanctioned collecting site in Connecticut.
Clark Hill Quarries
Lower Connecticut River Valley Planning Region
Clark Hill in Meshomasic State Forest is a second DEEP-sanctioned collecting site and includes the well-known Nathan Hall Quarry.

Best counties for aquamarine in Connecticut

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

Every aquamarine spot we track in Connecticut

Sorted by county. Coordinates open in Google Maps.

Spot	County	Minerals	Coordinates	Access
Old Simpson QuarryTryon Street	Capitol Planning Region	Aquamarine Smoky Quartz	41.6357, -72.6195	Public
Case Quarries	Lower Connecticut River Valley Planning Region	Beryl Aquamarine Columbite Feldspar Muscovite Smoky Quartz Garnet Monazite	41.6350, -72.6150	Public
CCC QuarryFilley Road	Lower Connecticut River Valley Planning Region	Beryl Aquamarine Microcline Albite Muscovite Schorl Autunite Quartz	41.4700, -72.5100	Public
Clark Hill QuarriesWoodcutters Road	Lower Connecticut River Valley Planning Region	Beryl Aquamarine Garnet Muscovite Autunite Torbernite Fluorapatite Smoky Quartz +2 more	41.5937, -72.5432	Public
Collins HillRose Hill Road	Lower Connecticut River Valley Planning Region	Apatite Aquamarine Beryl Citrine Bismuthinite Columbite Feldspar Rose Quartz +2 more	41.5883, -72.5916	Public
Gillette QuarryInjun Hollow Road	Lower Connecticut River Valley Planning Region	Amazonite Aquamarine Beryl Chrysoberyl Garnet Quartz Tourmaline	41.4926, -72.5112	Public
Riverside QuarryRiver Road	Lower Connecticut River Valley Planning Region	Aquamarine Beryl	41.5578, -72.6033	Public
Walden Gem QuarryWest Cotton Hill Road	Lower Connecticut River Valley Planning Region	Albite Aquamarine Beryl Pollucite Garnet Lepidolite Spodumene	41.6189, -72.5961	Public
Roebling MineMine Road	Western Connecticut Planning Region	Aquamarine Beryl Biotite Feldspar Garnet Smoky Quartz Muscovite Tourmaline	41.6561, -73.4349	Public

Before you go

Read the aquamarine identification guide so you know what a keeper looks like in the field: Aquamarine in the encyclopedia.

Aquamarine in Connecticut FAQ

Where can you find aquamarine in Connecticut?+

The mapped spots concentrate in Lower Connecticut River Valley Planning Region, Capitol Planning Region, and Western Connecticut Planning Region. Every spot on this page appears on the map above with coordinates and access notes.

How many aquamarine spots are mapped in Connecticut?+

9 spots across 3 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 aquamarine in Connecticut?+

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. 9 of the 9 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.

Where else to find aquamarine

More minerals to hunt in Connecticut

Hunt aquamarine in Connecticut 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.