Beskar, also known as Mandalorian iron, is a nearly indestructible metal alloy first used by the Mandalorians and found on Mandalore and its moon Concordia. This incredible metal alloy was nearly indestructible even to lightsabers, yet surprisingly light! Boba Fett eventually had a suit of armor fashioned out of beskar.
Kaminoans, due to the almond shape of their eyes, see color in the ultra-violet spectrum. To them, the white armor of the clone troopers, along with their white dwellings, were actually colored with shades that humans and a number of other species could not see.