# - 4978 Rainbow iris agate
Thinly sliced, polished iris agate specimens produce a unique iridescent display of colours when illuminated from behind. This effect is produced by densely packed thin bands in the agate (approximately 15 to 30 bands per millimetre). When light strikes these bands, it is reflected in many different directions, creating this colourful optical phenomenon known as diffraction. Rainbow iris agate is only found in Indonesia.
Thinly sliced, polished iris agate specimens produce a unique iridescent display of colours when illuminated from behind. This effect is produced by densely packed thin bands in the agate (approximately 15 to 30 bands per millimetre). When light strikes these bands, it is reflected in many different directions, creating this colourful optical phenomenon known as diffraction. Rainbow iris agate is only found in Indonesia.
Thinly sliced, polished iris agate specimens produce a unique iridescent display of colours when illuminated from behind. This effect is produced by densely packed thin bands in the agate (approximately 15 to 30 bands per millimetre). When light strikes these bands, it is reflected in many different directions, creating this colourful optical phenomenon known as diffraction. Rainbow iris agate is only found in Indonesia.