Cobbly Seabed Stones
These naturally tumbled seabed stones are hand-collected from the rugged shores of Cobscook Bay in Pembroke, Maine, and Passamaquoddy Bay near Eastport. Shaped by powerful tides and shifting sands, each stone carries the texture and color of Maine’s unique coastal geology. The mix includes granite, limestone, basalt, and quartz—creating a blend of pinks, grays, browns, and reds that reflect the diversity of our Downeast shoreline. Ideal for aquariums, terrariums, coastal crafts, or educational geology collections, these authentic marine stones bring the spirit of the Gulf of Maine into your home or classroom.
Key Facts:
Common name: Cobbly seabed stones
Locations: Shores of Cobscook Bay (Pembroke, ME) and Passamaquoddy Bay (Eastport, ME)
Seasonality: Available all year
Colors: Pink, gray, brown, red (granite, limestone, basalt, quartz)
Size: Sold by the gallon (stones range ~¼” – 4”)
Collected: By hand
Quantity: By the gallon
Note: This is a natural marine product. Natural variations in size, color, and appearance from photos should be expected.
Cobbly Seabed Stones
These naturally tumbled seabed stones are hand-collected from the rugged shores of Cobscook Bay in Pembroke, Maine, and Passamaquoddy Bay near Eastport. Shaped by powerful tides and shifting sands, each stone carries the texture and color of Maine’s unique coastal geology. The mix includes granite, limestone, basalt, and quartz—creating a blend of pinks, grays, browns, and reds that reflect the diversity of our Downeast shoreline. Ideal for aquariums, terrariums, coastal crafts, or educational geology collections, these authentic marine stones bring the spirit of the Gulf of Maine into your home or classroom.
Key Facts:
Common name: Cobbly seabed stones
Locations: Shores of Cobscook Bay (Pembroke, ME) and Passamaquoddy Bay (Eastport, ME)
Seasonality: Available all year
Colors: Pink, gray, brown, red (granite, limestone, basalt, quartz)
Size: Sold by the gallon (stones range ~¼” – 4”)
Collected: By hand
Quantity: By the gallon
Note: This is a natural marine product. Natural variations in size, color, and appearance from photos should be expected.
Cobbly seabed stones.
Tidepool Tim says, "Cobbly seabed substrate is perfect for aquariums and touch tanks housing marine invertebrates in particular. Rocks are preferred anchors for many species living in intertidal zones, often serving as seaweed holdfasts. Snails and mussels also attach themselves to rocks. The stones are granite, slate, limestone, quartz and more."
