Concretion Collection

Eroded sandstone concretions and formations at Shore Acres State Park, Oregon

Mineral concretions at Shore Acres State Park, Oregon

Canada, Alberta, Red Rock Coulee Natural Preserve. Round sandstone concretion. Credit as: Mike Grandmaison / Jaynes Gallery / DanitaDelimont

South Pacific, New Zealand, South Island, Moeraki. View of Moeraki boulders in surf along Koekohe Beach. Credit as: Don Grall / Jaynes Gallery / DanitaDelimont

Wave splashing over Moeraki Boulder, North Otago, South Island, New Zealand

Moeraki Boulder, North Otago, South Island, New Zealand

New Zealand, South Island, North Otago, Moeraki Boulders

Moeraki Boulders, North Otago, South Island, New Zealand

Sunrise, Moeraki Boulders, North Otago, South Island, New Zealand

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