Fig. 2.
From: Interstellar grains: Effect of inclusions on extinction

Extinction efficiencies for the composite grains with AR = 1.33 (N = 9640) and with a 20% volume fraction of graphite inclusions for various grain sizes.
From: Interstellar grains: Effect of inclusions on extinction
Extinction efficiencies for the composite grains with AR = 1.33 (N = 9640) and with a 20% volume fraction of graphite inclusions for various grain sizes.