Question

Why is Luster not a good characteristic to use for the identification of minerals?

Answer 1

A mineral's luster describes the way light is reflected from its surface.
Many metals look the same when they are shining. Therefore it is hard to find what is what and etc. When they're shiny they look the same.

Answer 2

But along with luster if you have a little more identification test then that's okai

Answer 3

Thanks for your help.