The glass flakes of the present invention each include a glass flake substrate and a coating layer coating the surface of the glass flake substrate. The glass flake substrates have an average thickness of 0.1 to 1.0 µm, and an average particle size of 1 to 100 µm. The coating layers are formed of methyl hydrogen silicone and the content percentage of the coating layers is 0.05 to 2.50 mass% as determined by ignition loss at 625 ± 20°C.