Mohs Scale
What does the Mohs Scale measure?
Hardness
What is a streak test?
When you scratch a rock on a streak plate and see what the color of the powder left behind is.
What rock is formed by heating and cooling of lava?
Igneous rock
The way light interacts with the surface of a mineral is called what?
Luster
How many types of fracture/cleavage types are there?
5
What is the range of the Mohs Scale?
1-10
False
What rock is formed by pieces of other rocks being pressured together?
Sedimentary Rock
This is measured by mass divided by volume
Which cleavage type is described as "sharp elongated points"?
Splintery Fracture
What is the hardness mineral (at a 10 hardness)
Diamond
Mass divided by volume
Rocks that are changed from either igneous or sedimentary by heat or pressure.
The study of crystal structure, chemistry, and the properties of minerals
Minerology
Which type of fracture is smooth and shaped like a bowl?
Conchoidal
How do you determine the hardness of a mineral?
Scratch it against another mineral and see which leaves a mark on the other.
How many types of luster are there?
8
Where do you usually find sedimentary rocks?
The ocean floor
The tendancy of a mineral to break along a FLAT surface
Cleavage
Which type is similar to freshly broken soil?
Earthy
What is a leave 4 hardness?
Flourite
What is the mineral that is used mainly in scratch tests because it has a hardness of 5?
Glass
Where do you usually find igneous rocks?
Lava or near volcanoes
The tendancy of a mineral to break
Fracture
What fracture type is sharp, jagged, and uneven?
Hackly