OGG Online Presentation: Predicting Large Type-II Diamonds
The Overberg Geoscientists Group (OGG) invites you to an online presentation by Dr Andy Moore exploring a megacryst-based model for predicting the presence of large, irregular Type-II diamonds in kimberlites.
Dr Moore will share insights from his extensive experience in diamond exploration, kimberlite prospecting, mantle geology, geomorphology and the origins of exceptional large diamonds such as the Cullinan.
Date: Thursday, 17 September 2026
Time: 11:00
Where: Online via Zoom
A fascinating presentation for anyone interested in diamonds, kimberlites, geological exploration and Southern African geology.
Read the full presentation details here.









