Gotland's Lithological Society was created in 2023 by the visual artist Tuula Närhinen for the Art of Heritage initiative, a project realised by the Baltic Art Center (BAC) in collaboration with the Gotland Museum. The GLS sets out to study the geological history and cultural traditions associated with the uses of limestone. Focusing on lithological matters and petrificata, the project explores cycles of sedimentation and erosion. The work draws from littoral processes - the elemental forces of nature that constantly layer, expose and erode sediments on the beach banks - as well as from the human cultural techniques in their futile attempt to preserve memories in limestone – only to end up with weathered church ruins, partly erased inscriptions and fragmentary fossil collections.