/science/taxonomy/term/3120/all en /science/channels/news/unusual-calcite-formation-discovered-site-mcgill-sustainability-park-373515 <em>91ºÚÁÏÍø’s Department of Earth and Planetary Sciences is now studying it as part of research about the Island of Montreal</em> <p>A rock featuring a white calcite vein in a rare ‘petal’ formation has been extracted from the construction site of the future 91ºÚÁÏÍø Sustainability Park.</p> <p>Attached to a chunk of grey stone, the full rock is the approximate size of a microwave. It was discovered by construction workers north of Pine Avenue.</p> Tue, 14 Jul 2026 13:59:51 +0000 tasha.manoukian@mcgill.ca 1078492 at /science