Research Paper: Gypsum crystals in Irish mudstone aggregate

George Matheson (Matrock Consulting) and Gareth Jones (Conodate Geology) have published a paper on the mineralogy of gypsum in aggregates that have undergone pyrite heave. The authors used advanced petrography to examine the form of gypsum and its relation to forceful or passive growth with regards to aggregate expansion.

The paper, titled “The habit and form of gypsum crystals in Irish mudstone aggregate affected by pyrite-induced swelling” follows previous presentations by Matheson, e.g., in December 2012:

Matheson, G. (2012). Pyrite-induced swelling. Annual Guest Lecture given to the Geotechnical Society of Ireland. 6.12.12, Engineers Ireland, Dublin. Click here to see original flyer.Read the rest