The term you're looking for is albedo, and it's the percentage of light that is reflected by an object. The higher the percentage of light reflected, the higher the albedo. It is most often used in connection with astronomy, as in the albedo of certain planets. Planets that are cloud-covered have fairly high albedos, since clouds reflect sunlight pretty well. The moon, by comparison, has a very low albedo, because it's just dirt. Of course, the moon is very bright to us because it's so close.
Shininess
The shininess of a mineral is known as it's luster. It is one of the many physical properties that are used to help classify minerals.
To be shiny is a physical property.
hardness,shininess, malleability, and ductility
luster and its like part of the metallic elements
Karet is not a measure of shininess, it is a measure of the purity.
I'm pretty sure it would be albedo, the measure of refraction of the suns rays.
what is that?
brightness
Metal
Shininess
Luster
gloss
The shininess of a mineral is known as it's luster. It is one of the many physical properties that are used to help classify minerals.
Yes.
metals
luster