Mineral Properties SC.4.E.6.2 (Hernando 23/24)

Front

What is the mineral property of streak?

Back

The streak of a mineral is the color of the powder that is left when the mineral is rubbed on a streak plate.

Front

How is the streak of a mineral tested?

Back

The streak is tested by rubbing the mineral on a streak plate to observe the color mark it leaves.

Front

What does the mineral property of luster refer to?

Back

Luster refers to how a mineral reflects light, indicating how shiny it is.

Front

How is luster tested in minerals?

Back

Luster is tested by observing how the mineral reflects light.

Front

What is cleavage in mineralogy?

Back

Cleavage is the tendency of a mineral to break along flat, even surfaces.

Front

How is cleavage used to identify a mineral?

Back

Cleavage is used to identify a mineral by checking how it breaks along its surfaces.

Front

Why is it important for geologists to know the mineral composition of rocks?

Back

It is important for geologists to know the mineral composition to understand how rocks were formed.

Front

What is the difference between streak and luster?

Back

Streak is the color mark left by a mineral, while luster is the way the mineral reflects light.

Front

What is a streak plate?

Back

A streak plate is a piece of unglazed porcelain used to test the streak of a mineral.

Front

What are the two main types of luster?

Back

The two main types of luster are metallic and non-metallic.