Color helps us identify minerals because all different minerals have all different colors .
Luster helps us identify minerals because all different minerals have all different luster for instance metallic, earthy or dole or glassy.
Streak helps us identify minerals because of the color it leaves behind.
Cleavage and Fracture help us identify minerals by how they brake.
Hardness helps us identify mineral by using the hardness scale and scratching other minerals.
Crystal shape helps us identify minerals by the way they form.
Density helps us identify minerals by how heavy they are, or if they float.
Magnetism helps us identify minerals by if there magnetic.
Fluorescence and Phosphorescence helps us if they glow or not.
Double Refraction helps if you can see double images.
Radioactivity helps us by identify the minerals