Saturday 26th July 2025 Boylestone Quarry is a geological SSSI on the outskirts of Barrhead. The site was quarried for road metal but has been disused for decades. The main mineralogical interest of the quarry is the presence of prehnite (calcium aluminium silicate). The walls of the quarry also feature a good example of twoContinueContinue reading “GNHS and PNHS outing to Boylestone Quarry, Barrhead”
Paisley Natural History Society 