External and internal features of garnet revealed by the multifocus imaging technique

► We propose an application of the multifocus imaging technique to an alluvial garnet. ► Appropriate magnifications allow seeing both external and internal features. ► The multifocus stack yields a three-dimensional overview of inclusions. ► Both micromorphological features and inclusion distribution are illustrated. This publication illustrates the imaging of both external and internal features of a single-garnet crystal using the multifocus imaging technique. Based on image stacks acquired using a standard optical microscope, it demonstrates that this easily implemented technique yields information on single grains and may in some cases provide more information than that obtainable from a conventional thin section.