The rarest color for an Aurora Borealis is purple and orange in the aurora australis
There are pink auroras too! the green wavelength (557.7 nm) is from oxygen; nitrogen gives pink 630.0 nm).
Auroras appears in the night sky by atoms and molecules. Auroras is lights in the sky.
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.
the Auroras form in the earths poles which is south pole and north pole.
Auroras are produced by interactions among thermospheric gases and free electrons
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.
black
PURPIL is the VERY RAREST colour of grossman aliens
rarest eye color is GREEN
green
Purple
Rainbow :)
pink
There are pink auroras too! the green wavelength (557.7 nm) is from oxygen; nitrogen gives pink 630.0 nm).