Clarke, D. Barrie, Christopher R.M. McFarlane, David Hamilton, and David Stevens. 2017. “Forensic Igneous Petrology: Locating the Source Quarry for the “black Granite" Titanic Headstones in Halifax, Nova Scotia, Canada”. Atlantic Geoscience 53 (March):087-114. https://doi.org/10.4138/atlgeol.2017.004.