Metallic Luster: It looks like a metal
Non Metallic Luster: It's a mineral that doesn't look like mineral.
Streak: Color that left from the rock after scratching.
Cleavage: Rock that is broken evenly
Fracture: Rock that is broken unevenly
Composition: Chemical that made mineral
Color: Appearance of a rock
Hardness: If the rock is soft or hard, we know it by scratching it on glass.