In science class, I learned that how rocks are formed. Rocks are formed by heat and dissolve in water. different mineral has different properties, like the cleavage, luster, color, composition, and hardness. I also learned how to defined a mineral by using the properties.
What I did in the lab was choose 2 types of the mineral that I want to make, and put water into the big cup, and turn on the machine, and we put powdered into it, until the water was totally saturated. We put the liquid into the beaker,then put the beaker under the sunlight.
2.mineral properties.
color- the color that you can perceive when you look at the mineral.
luster- metallic or Non-metallic.
Metallic- look like metal.
Non-metallic- does not look like a metal.
fracture- break unevenly.
cleavage- break evenly.
hardness- how hard or soft.
Hard- scratch the glass plate(5.5)
soft- does not scratch the glass plate.
composition- Chemical structure.
Mineral identification.
Name: Talc
Luster: Non-metallic
color: white
hardness:1
cleavage.
Name: Pyrite
Luster: Metallic
color: brassy yellow
Fracture
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