Fig. 2
From: Spheroidal weathering of basalt from Gebel Qatrani, Fayum Depression, Egypt
Photograph of basalt spheroid showing core-stone and outer weathered shell
Fig. 2 | Bulletin of the National Research Centre
From: Spheroidal weathering of basalt from Gebel Qatrani, Fayum Depression, Egypt
Photograph of basalt spheroid showing core-stone and outer weathered shell