Pigment identification of an old Japanese flag “Hinomaru” using micro-XRF and Raman microscopy

This application note introduces pigment identification using micro-XRF and Raman microscopy on a Japanese flag “Hinomaru”, which is presumed to be the oldest and designed by an ancient Japanese Emperor Go-Daigo. The two spectroscopic analyses identified that the red pigment used on the flag matched the cinnabar ore (Mercury(II) sulfide) mined from the Mine near the place where the Emperor lived.

The old national flag of Japan "Hinomaru” analyzed in this application note

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