The 6 characterisics to identifying a rock
The first thing to identifiying a rock is it's crystal structure, and crystal structure determines the shape of the rock and a crystal has straight edges,flat sides and regular angles.The second thing is hardness, and hardness is measured in numbers the hardest is 10 and the weakest is 1.The third is cleavage and fracture, cleavage is when a mineral breaks apart, and fracture is when fault lines are in the rock. The fourth is luster, and luster is how shiney a rock is.The fifth one is colour,and this is the colour of the rock and all rock has its own colour.The last one is streak, streak is one of the most important thing to identifing a rock. If you rub a rock that is stronger than another it will leave a streak.