The rarest color for an Aurora Borealis is purple and orange in the aurora australis
Auroras change color due to the type of gas molecules in the Earth's atmosphere that are being excited by solar wind particles. Different gases emit different colors when they are energized, resulting in the vibrant displays of colors in the auroras.
There are pink auroras too! the green wavelength (557.7 nm) is from oxygen; nitrogen gives pink 630.0 nm).
The rarest diamond colour is the naturally occurring red colour. All naturally coloured diamonds have a further grade designation on this scale:FaintVery LightLightFancy LightFancyFancy DarkFancy IntenseFancy DeepFancy VividThe Fancy Vivid colour designation is the most expensive grade.Read more, below.
Auroras appears in the night sky by atoms and molecules. Auroras is lights in the sky.
Red, it is the color with the longest wave lengths and lowest frequencies. While violet has the shortest wave lengths and the highest frequencies. ( Goes on from red, left to right, when talking about the rainbow!) Hope this helped! Resources: ThinkCentral ( online text book )
rarest eye color is GREEN
Red is rarest-around 25 percent
Yellow is said to be the most popular, black in the middle and the rarest color would be chocolate.
The rarest color is bright apple green with flashes of the red, gold and orange fire.
Auroras change color due to the type of gas molecules in the Earth's atmosphere that are being excited by solar wind particles. Different gases emit different colors when they are energized, resulting in the vibrant displays of colors in the auroras.
black
PURPIL is the VERY RAREST colour of grossman aliens
rarest eye color is GREEN
Purple
Rainbow :)
green
Well actually the rarest hair and eye color is burgundy (red and purple and some blonde) and grey eyes which i have or purple hair and violet or green eyes.